diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 6873d5a..d9cc690 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -7,6 +7,7 @@
 #include <ctype.h>
 #include <errno.h>
 #include <string.h>
+#include <limits.h>
 #include "modpost.h"
 
 /*