1 files changed, 1 insertions, 1 deletions
diff --git a/pop.c b/pop.c
index 39081b4d..2473dce9 100644
--- a/pop.c
+++ b/pop.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>
  *