diff --git a/appl/dceutils/k5dcecon.c b/appl/dceutils/k5dcecon.c
index 38acee950..99310bb34 100644
--- a/appl/dceutils/k5dcecon.c
+++ b/appl/dceutils/k5dcecon.c
@@ -727,7 +727,7 @@ main(argc, argv)
 
 #ifdef DEBUG
   close(2);
-  open("/tmp/k5dce.debug",O_WRONLY|O_CREAT|O_APPEND);
+  open("/tmp/k5dce.debug",O_WRONLY|O_CREAT|O_APPEND, 0600);
 #endif
 
   if (myuid = getuid()) {