1 files changed, 1 insertions, 1 deletions
diff --git a/ext2fs/ext2fs.c b/ext2fs/ext2fs.c
index 6f2aeaab..96dfc328 100644
--- a/ext2fs/ext2fs.c
+++ b/ext2fs/ext2fs.c
@@ -279,7 +279,7 @@ main (int argc, char **argv)
   /* A handy source of page-aligned zeros.  */
   vm_allocate (mach_task_self (), &zeroblock, block_size, 1);
 
-  if (!diskfs_readonly)
+  if (!diskfs_readonly && (sblock->s_state & EXT2_VALID_FS))
     {
       sblock->s_state &= ~EXT2_VALID_FS;
       sync_super_block ();