diff --git a/cli.c b/cli.c
index 5b85051..1309c90 100644
--- a/cli.c
+++ b/cli.c
@@ -1,6 +1,7 @@
 #include "cli.h"
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 #include <stdlib.h>
 #include <ctype.h>