--- freeciv/common/registry.c.orig	Fri Aug 17 13:45:45 2001
+++ freeciv/common/registry.c	Fri Aug 17 13:46:23 2001
@@ -284,9 +284,11 @@
   
   /* free the real data: */
   sbuf_free(file->sb);
-  free(file->filename);
+  if(file->filename)
+    free(file->filename);
 
   file->sb = NULL;
+  file->filename = NULL;
 }
 
 /**************************************************************************