diff --git a/files/file.c b/files/file.c
index 78daca8..e4afe21 100644
--- a/files/file.c
+++ b/files/file.c
@@ -415,7 +415,7 @@
   return TRUE;
   
 test_ro_int24:
-  if (oldmode & OF_READ)
+  if (oldmode == OF_READ)
     return FALSE;
   /* Fall through */
 fail_int24:
@@ -425,7 +425,7 @@
   return TRUE;
   
 test_ro_err05:
-  if (oldmode & OF_READ)
+  if (oldmode == OF_READ)
     return FALSE;
   /* fall through */
 fail_error05: