diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index f8e73c039dc8..3cc9f9369036 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -77,7 +77,7 @@ struct gstr str_new(void)
 {
 	struct gstr gs;
 	gs.s = malloc(sizeof(char) * 64);
-	gs.len = 16;
+	gs.len = 64;
 	strcpy(gs.s, "\0");
 	return gs;
 }