diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c
index b2993a67a4b362b934c9cfa512e3f813ec90aefa..9f6d000c02455135d713709f54268ea10bf64900 100644
--- a/tools/testing/selftests/proc/proc-self-syscall.c
+++ b/tools/testing/selftests/proc/proc-self-syscall.c
@@ -20,7 +20,6 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <errno.h>
-#include <unistd.h>
 #include <string.h>
 #include <stdio.h>