diff --git a/tools/gencromfs.c b/tools/gencromfs.c
index ae11da20a1..9b4056a569 100644
--- a/tools/gencromfs.c
+++ b/tools/gencromfs.c
@@ -54,6 +54,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <dirent.h>
+#include <limits.h>
 #include <errno.h>
 
 /****************************************************************************