diff --git a/Process.c b/Process.c
index d6e30ee7..3fc90f7c 100644
--- a/Process.c
+++ b/Process.c
@@ -30,8 +30,7 @@ in the source distribution for its full text.
 #include <math.h>
 #ifdef MAJOR_IN_MKDEV
 #include <sys/mkdev.h>
-#elif defined(MAJOR_IN_SYSMACROS) || \
-   (defined(HAVE_SYS_SYSMACROS_H) && HAVE_SYS_SYSMACROS_H)
+#elif defined(MAJOR_IN_SYSMACROS)
 #include <sys/sysmacros.h>
 #endif
 
diff --git a/Process.h b/Process.h
index f702ca00..9c15d06e 100644
--- a/Process.h
+++ b/Process.h
@@ -10,8 +10,7 @@ in the source distribution for its full text.
 */
 
 #ifdef MAJOR_IN_MKDEV
-#elif defined(MAJOR_IN_SYSMACROS) || \
-   (defined(HAVE_SYS_SYSMACROS_H) && HAVE_SYS_SYSMACROS_H)
+#elif defined(MAJOR_IN_SYSMACROS)
 #endif
 
 #ifdef __ANDROID__
diff --git a/linux/LinuxProcessList.c b/linux/LinuxProcessList.c
index 62bc0967..027cca4f 100644
--- a/linux/LinuxProcessList.c
+++ b/linux/LinuxProcessList.c
@@ -28,8 +28,7 @@ in the source distribution for its full text.
 #include <fcntl.h>
 #ifdef MAJOR_IN_MKDEV
 #include <sys/mkdev.h>
-#elif defined(MAJOR_IN_SYSMACROS) || \
-   (defined(HAVE_SYS_SYSMACROS_H) && HAVE_SYS_SYSMACROS_H)
+#elif defined(MAJOR_IN_SYSMACROS)
 #include <sys/sysmacros.h>
 #endif
 
diff --git a/linux/LinuxProcessList.h b/linux/LinuxProcessList.h
index f30b487d..9dbbce5e 100644
--- a/linux/LinuxProcessList.h
+++ b/linux/LinuxProcessList.h
@@ -10,8 +10,7 @@ in the source distribution for its full text.
 */
 
 #ifdef MAJOR_IN_MKDEV
-#elif defined(MAJOR_IN_SYSMACROS) || \
-   (defined(HAVE_SYS_SYSMACROS_H) && HAVE_SYS_SYSMACROS_H)
+#elif defined(MAJOR_IN_SYSMACROS)
 #endif
 
 #ifdef HAVE_DELAYACCT