diff --git a/linux/LinuxProcess.c b/linux/LinuxProcess.c
index 045d3153..c75291ce 100644
--- a/linux/LinuxProcess.c
+++ b/linux/LinuxProcess.c
@@ -186,7 +186,7 @@ bool LinuxProcess_setIOPriority(Process* this, Arg ioprio) {
 }
 
 #ifdef HAVE_DELAYACCT
-void LinuxProcess_printDelay(float delay_percent, char* buffer, int n) {
+static void LinuxProcess_printDelay(float delay_percent, char* buffer, int n) {
    if (isnan(delay_percent)) {
       xSnprintf(buffer, n, " N/A  ");
    } else {
diff --git a/linux/LinuxProcess.h b/linux/LinuxProcess.h
index d4085963..6116808e 100644
--- a/linux/LinuxProcess.h
+++ b/linux/LinuxProcess.h
@@ -177,10 +177,6 @@ IOPriority LinuxProcess_updateIOPriority(LinuxProcess* this);
 
 bool LinuxProcess_setIOPriority(Process* this, Arg ioprio);
 
-#ifdef HAVE_DELAYACCT
-void LinuxProcess_printDelay(float delay_percent, char* buffer, int n);
-#endif
-
 bool Process_isThread(const Process* this);
 
 #endif