1 files changed, 1 insertions, 1 deletions

diff --git a/mx.c b/mx.c
index 122bb675..f8b2c727 100644
--- a/mx.c
+++ b/mx.c
@@ -1,4 +1,4 @@
-static char rcsid[]="$Id$";
+static const char rcsid[]="$Id$";
 /*
  * Copyright (C) 1996-8 Michael R. Elkins <me@cs.hmc.edu>
  *