1 files changed, 1 insertions, 0 deletions

diff --git a/util.h b/util.h
index 5a4172d..a771b46 100644
--- a/util.h
+++ b/util.h
@@ -2,6 +2,7 @@
 #ifndef UTIL_H
 #define UTIL_H
 
+#include <stdlib.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <getopt.h>