diff --git a/block/vvfat.c b/block/vvfat.c
index ce16bbd8c..13c31fadd 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2865,7 +2865,7 @@ static void checkpoint(void) {
     return;
     /* avoid compiler warnings: */
     hexdump(NULL, 100);
-    remove_mapping(vvv, NULL);
+    remove_mapping(vvv, 0);
     print_mapping(NULL);
     print_direntry(NULL);
 }