1 files changed, 2 insertions, 0 deletions

diff --git a/util.h b/util.h
index 4ede5bd..a7f06ba 100644
--- a/util.h
+++ b/util.h
@@ -1,3 +1,5 @@
+#pragma once
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>