diff --git a/lib/libc/gen/_pthread_stubs.c b/lib/libc/gen/_pthread_stubs.c
index 98830ea466d..bd35bd222bf 100644
--- a/lib/libc/gen/_pthread_stubs.c
+++ b/lib/libc/gen/_pthread_stubs.c
@@ -297,7 +297,7 @@ stub_self(void)
 static int
 stub_fail(void)
 {
-	return ENOSYS;
+	return (ENOSYS);
 }
 
 static int