diff --git a/sim/SimSelect.c b/sim/SimSelect.c
index 0d851e08..0536b3ff 100644
--- a/sim/SimSelect.c
+++ b/sim/SimSelect.c
@@ -19,7 +19,7 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)SimSelect.c	4.14 MAGIC (Berkeley) 10/3/85";
+static const char sccsid[] = "@(#)SimSelect.c	4.14 MAGIC (Berkeley) 10/3/85";
 #endif  /* not lint */
 
 #include <stdio.h>