diff --git a/frankenphp.c b/frankenphp.c
index 67ffdf28..4328a3e2 100644
--- a/frankenphp.c
+++ b/frankenphp.c
@@ -20,7 +20,6 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
 #if defined(__linux__)
 #include <sys/prctl.h>
 #elif defined(__FreeBSD__) || defined(__OpenBSD__)