diff --git a/parse.y b/parse.y
index e9b091b..e5a107d 100644
--- a/parse.y
+++ b/parse.y
@@ -19,6 +19,7 @@
 
 #include <err.h>
 #include <stdio.h>
+#include <string.h>
 
 #include "gmid.h"