diff --git a/quickjs.h b/quickjs.h
index 4dcc0c8..13cb5f8 100644
--- a/quickjs.h
+++ b/quickjs.h
@@ -27,6 +27,7 @@
 
 #include <stdio.h>
 #include <stdint.h>
+#include <string.h>
 
 #ifdef __cplusplus
 extern "C" {