diff --git a/AffinityPanel.c b/AffinityPanel.c
index 0a964882..0027d4a4 100644
--- a/AffinityPanel.c
+++ b/AffinityPanel.c
@@ -5,14 +5,17 @@ Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "AffinityPanel.h"
-#include "CRT.h"
+#include "config.h"
 
-#include "Vector.h"
+#include "AffinityPanel.h"
 
 #include <assert.h>
 #include <string.h>
 
+#include "CRT.h"
+#include "StringUtils.h"
+#include "Vector.h"
+
 #ifdef HAVE_LIBHWLOC
 #include <hwloc.h>
 #endif
diff --git a/AvailableColumnsPanel.c b/AvailableColumnsPanel.c
index dcfbb3e2..a2a6aba6 100644
--- a/AvailableColumnsPanel.c
+++ b/AvailableColumnsPanel.c
@@ -6,16 +6,17 @@ in the source distribution for its full text.
 */
 
 #include "AvailableColumnsPanel.h"
-#include "Platform.h"
-
-#include "Header.h"
-#include "ColumnsPanel.h"
 
 #include <assert.h>
-#include <stdlib.h>
 #include <ctype.h>
+#include <stdlib.h>
 #include <string.h>
 
+#include "ColumnsPanel.h"
+#include "Header.h"
+#include "Platform.h"
+#include "StringUtils.h"
+
 
 static const char* const AvailableColumnsFunctions[] = {"      ", "      ", "      ", "      ", "Add   ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
diff --git a/AvailableMetersPanel.c b/AvailableMetersPanel.c
index b51a9e9f..b90912bd 100644
--- a/AvailableMetersPanel.c
+++ b/AvailableMetersPanel.c
@@ -12,6 +12,7 @@ in the source distribution for its full text.
 #include "Header.h"
 #include "ListItem.h"
 #include "Platform.h"
+#include "StringUtils.h"
 
 #include <assert.h>
 #include <stdlib.h>
diff --git a/CPUMeter.c b/CPUMeter.c
index 446c04d2..c3133a2c 100644
--- a/CPUMeter.c
+++ b/CPUMeter.c
@@ -10,6 +10,7 @@ in the source distribution for its full text.
 #include "CRT.h"
 #include "Settings.h"
 #include "Platform.h"
+#include "StringUtils.h"
 
 #include <assert.h>
 #include <stdlib.h>
diff --git a/ColorsPanel.c b/ColorsPanel.c
index 917be98c..45745a73 100644
--- a/ColorsPanel.c
+++ b/ColorsPanel.c
@@ -9,6 +9,7 @@ in the source distribution for its full text.
 
 #include "CRT.h"
 #include "CheckItem.h"
+#include "StringUtils.h"
 
 #include <assert.h>
 #include <stdlib.h>
diff --git a/DiskIOMeter.c b/DiskIOMeter.c
index 8393af70..34b0f081 100644
--- a/DiskIOMeter.c
+++ b/DiskIOMeter.c
@@ -11,6 +11,7 @@ in the source distribution for its full text.
 
 #include "CRT.h"
 #include "Platform.h"
+#include "StringUtils.h"
 
 
 static const int DiskIOMeter_attributes[] = {
diff --git a/DisplayOptionsPanel.c b/DisplayOptionsPanel.c
index 1aede655..d6534887 100644
--- a/DisplayOptionsPanel.c
+++ b/DisplayOptionsPanel.c
@@ -7,13 +7,14 @@ in the source distribution for its full text.
 
 #include "DisplayOptionsPanel.h"
 
-#include "CheckItem.h"
-#include "CRT.h"
-
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include "CheckItem.h"
+#include "CRT.h"
+#include "StringUtils.h"
+
 
 static const char* const DisplayOptionsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
diff --git a/FunctionBar.c b/FunctionBar.c
index c67e613c..3e00b87e 100644
--- a/FunctionBar.c
+++ b/FunctionBar.c
@@ -8,6 +8,7 @@ in the source distribution for its full text.
 #include "FunctionBar.h"
 #include "CRT.h"
 #include "RichString.h"
+#include "StringUtils.h"
 #include "XAlloc.h"
 
 #include <assert.h>
diff --git a/LoadAverageMeter.c b/LoadAverageMeter.c
index 208b7e95..507d3dc3 100644
--- a/LoadAverageMeter.c
+++ b/LoadAverageMeter.c
@@ -9,6 +9,7 @@ in the source distribution for its full text.
 
 #include "CRT.h"
 #include "Platform.h"
+#include "StringUtils.h"
 
 
 static const int LoadAverageMeter_attributes[] = {
diff --git a/SignalsPanel.c b/SignalsPanel.c
index 933a21ba..e15e6c8d 100644
--- a/SignalsPanel.c
+++ b/SignalsPanel.c
@@ -7,16 +7,16 @@ in the source distribution for its full text.
 
 #include "Panel.h"
 #include "SignalsPanel.h"
-#include "Platform.h"
+
+#include <assert.h>
+#include <ctype.h>
+#include <signal.h>
+#include <stdlib.h>
 
 #include "ListItem.h"
+#include "Platform.h"
 #include "RichString.h"
-
-#include <stdlib.h>
-#include <assert.h>
-#include <signal.h>
-
-#include <ctype.h>
+#include "StringUtils.h"
 
 
 Panel* SignalsPanel_new() {
diff --git a/StringUtils.c b/StringUtils.c
index f74566f8..4eb76968 100644
--- a/StringUtils.c
+++ b/StringUtils.c
@@ -5,14 +5,17 @@ Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "StringUtils.h"
-#include "XAlloc.h"
-
 #include "config.h"
 
+#include "StringUtils.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
 #include <string.h>
 #include <strings.h>
-#include <stdlib.h>
+
+#include "XAlloc.h"
+
 
 char* String_cat(const char* s1, const char* s2) {
    int l1 = strlen(s1);
@@ -140,3 +143,37 @@ char* String_readLine(FILE* fd) {
       at = buffer + bufSize - step;
    }
 }
+
+int xAsprintf(char** strp, const char* fmt, ...) {
+   va_list vl;
+   va_start(vl, fmt);
+   int r = vasprintf(strp, fmt, vl);
+   va_end(vl);
+
+   if (r < 0 || !*strp) {
+      fail();
+   }
+
+   return r;
+}
+
+int xSnprintf(char* buf, int len, const char* fmt, ...) {
+   va_list vl;
+   va_start(vl, fmt);
+   int n = vsnprintf(buf, len, fmt, vl);
+   va_end(vl);
+
+   if (n < 0 || n >= len) {
+      fail();
+   }
+
+   return n;
+}
+
+char* xStrdup(const char* str) {
+   char* data = strdup(str);
+   if (!data) {
+      fail();
+   }
+   return data;
+}
diff --git a/StringUtils.h b/StringUtils.h
index 936617ff..5a1af9ad 100644
--- a/StringUtils.h
+++ b/StringUtils.h
@@ -9,6 +9,9 @@ in the source distribution for its full text.
 
 #include <stdio.h>
 
+#include "Macros.h"
+
+
 #define String_startsWith(s, match) (strncmp((s),(match),strlen(match)) == 0)
 #define String_contains_i(s1, s2) (strcasestr(s1, s2) != NULL)
 
@@ -31,4 +34,12 @@ char* String_getToken(const char* line, const unsigned short int numMatch);
 
 char* String_readLine(FILE* fd);
 
+ATTR_FORMAT(printf, 2, 3)
+int xAsprintf(char **strp, const char* fmt, ...);
+
+ATTR_FORMAT(printf, 3, 4)
+int xSnprintf(char *buf, int len, const char* fmt, ...);
+
+char* xStrdup(const char* str) ATTR_NONNULL;
+
 #endif
diff --git a/TasksMeter.c b/TasksMeter.c
index fb3767c5..ef7e4964 100644
--- a/TasksMeter.c
+++ b/TasksMeter.c
@@ -7,8 +7,9 @@ in the source distribution for its full text.
 
 #include "TasksMeter.h"
 
-#include "Platform.h"
 #include "CRT.h"
+#include "Platform.h"
+#include "StringUtils.h"
 
 
 static const int TasksMeter_attributes[] = {
diff --git a/UptimeMeter.c b/UptimeMeter.c
index a1195186..c8e511f1 100644
--- a/UptimeMeter.c
+++ b/UptimeMeter.c
@@ -6,8 +6,10 @@ in the source distribution for its full text.
 */
 
 #include "UptimeMeter.h"
-#include "Platform.h"
+
 #include "CRT.h"
+#include "Platform.h"
+#include "StringUtils.h"
 
 
 static const int UptimeMeter_attributes[] = {
diff --git a/UsersTable.c b/UsersTable.c
index 722dd6e1..208fc8d8 100644
--- a/UsersTable.c
+++ b/UsersTable.c
@@ -5,11 +5,10 @@ Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "UsersTable.h"
-#include "XAlloc.h"
-
 #include "config.h"
 
+#include "UsersTable.h"
+
 #include <stdio.h>
 #include <string.h>
 #include <strings.h>
@@ -18,6 +17,9 @@ in the source distribution for its full text.
 #include <stdlib.h>
 #include <assert.h>
 
+#include "StringUtils.h"
+#include "XAlloc.h"
+
 
 UsersTable* UsersTable_new() {
    UsersTable* this;
diff --git a/XAlloc.c b/XAlloc.c
index c832d087..815cf47f 100644
--- a/XAlloc.c
+++ b/XAlloc.c
@@ -40,37 +40,3 @@ void* xRealloc(void* ptr, size_t size) {
    }
    return data;
 }
-
-int xAsprintf(char** strp, const char* fmt, ...) {
-   va_list vl;
-   va_start(vl, fmt);
-   int _r = vasprintf(strp, fmt, vl);
-   va_end(vl);
-
-   if (_r < 0) {
-      fail();
-   }
-
-   return _r;
-}
-
-int xSnprintf(char* buf, int len, const char* fmt, ...) {
-   va_list vl;
-   va_start(vl, fmt);
-   int _n=vsnprintf(buf, len, fmt, vl);
-   va_end(vl);
-
-   if (!(_n > -1 && _n < len)) {
-      fail();
-   }
-
-   return _n;
-}
-
-char* xStrdup(const char* str) {
-   char* data = strdup(str);
-   if (!data) {
-      fail();
-   }
-   return data;
-}
diff --git a/XAlloc.h b/XAlloc.h
index 97c15519..98a422fc 100644
--- a/XAlloc.h
+++ b/XAlloc.h
@@ -19,12 +19,4 @@ void* xCalloc(size_t nmemb, size_t size);
 
 void* xRealloc(void* ptr, size_t size);
 
-ATTR_FORMAT(printf, 2, 3)
-int xAsprintf(char **strp, const char* fmt, ...);
-
-ATTR_FORMAT(printf, 3, 4)
-int xSnprintf(char *buf, int len, const char* fmt, ...);
-
-char* xStrdup(const char* str) ATTR_NONNULL;
-
 #endif
diff --git a/htop.c b/htop.c
index 8c813564..9ce966f7 100644
--- a/htop.c
+++ b/htop.c
@@ -16,6 +16,7 @@ in the source distribution for its full text.
 #include "ProcessList.h"
 #include "ScreenManager.h"
 #include "Settings.h"
+#include "StringUtils.h"
 #include "UsersTable.h"
 #include "Platform.h"
 
diff --git a/linux/IOPriorityPanel.c b/linux/IOPriorityPanel.c
index a12b8065..ce7f01e4 100644
--- a/linux/IOPriorityPanel.c
+++ b/linux/IOPriorityPanel.c
@@ -7,6 +7,8 @@ in the source distribution for its full text.
 
 #include "IOPriorityPanel.h"
 
+#include "StringUtils.h"
+
 
 Panel* IOPriorityPanel_new(IOPriority currPrio) {
    Panel* this = Panel_new(1, 1, 1, 1, true, Class(ListItem), FunctionBar_newEnterEsc("Set    ", "Cancel "));
diff --git a/linux/LinuxProcess.c b/linux/LinuxProcess.c
index 68baf96d..9e3c2f89 100644
--- a/linux/LinuxProcess.c
+++ b/linux/LinuxProcess.c
@@ -9,8 +9,9 @@ in the source distribution for its full text.
 #include "Process.h"
 #include "ProcessList.h"
 #include "LinuxProcess.h"
-#include "Platform.h"
 #include "CRT.h"
+#include "Platform.h"
+#include "StringUtils.h"
 
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/linux/PressureStallMeter.c b/linux/PressureStallMeter.c
index 307e397d..518e66c8 100644
--- a/linux/PressureStallMeter.c
+++ b/linux/PressureStallMeter.c
@@ -7,14 +7,13 @@ in the source distribution for its full text.
 */
 
 #include "PressureStallMeter.h"
-#include "Platform.h"
-#include "CRT.h"
 
 #include <string.h>
 
-/*{
-#include "Meter.h"
-}*/
+#include "CRT.h"
+#include "Platform.h"
+#include "StringUtils.h"
+
 
 static const int PressureStallMeter_attributes[] = {
    PRESSURE_STALL_TEN, PRESSURE_STALL_SIXTY, PRESSURE_STALL_THREEHUNDRED
diff --git a/zfs/ZfsCompressedArcMeter.c b/zfs/ZfsCompressedArcMeter.c
index 472b5b5b..def88d02 100644
--- a/zfs/ZfsCompressedArcMeter.c
+++ b/zfs/ZfsCompressedArcMeter.c
@@ -10,6 +10,7 @@ in the source distribution for its full text.
 
 #include "CRT.h"
 #include "Platform.h"
+#include "StringUtils.h"
 
 #include <stdlib.h>
 #include <string.h>