diff --git a/jsmn.c b/jsmn.c
index a9aa5fe4b..1091b9509 100644
--- a/jsmn.c
+++ b/jsmn.c
@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <string.h>
 
 #include "jsmn.h"