diff --git a/tools/creative.c b/tools/creative.c
index 43829c3fbd..bcabc4fc2a 100644
--- a/tools/creative.c
+++ b/tools/creative.c
@@ -22,6 +22,7 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <string.h>
 
 /*
 Create a Zen Vision:M FRESCUE structure file