diff --git a/src/files.c b/src/files.c
index ccf1f2a2..fe289d1b 100644
--- a/src/files.c
+++ b/src/files.c
@@ -2216,7 +2216,7 @@ int do_writeout(bool exiting)
     append_type append = OVERWRITE;
     char *given;
 	/* The filename we offer, or what the user typed so far. */
-    bool maychange = FALSE;
+    bool maychange = (openfile->filename[0] == '\0');
 	/* Whether it's okay to save the file under a different name. */
 #ifndef DISABLE_EXTRA
     static bool did_credits = FALSE;