diff --git a/ChangeLog b/ChangeLog
index ca663573..aa345200 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2003-10-26  Paul Eggert  <eggert@twinsun.com>
+
+	* system.c (sys_spawn_shell): Cast trailing null to (char *).
+	Bug reported by Christian Weisgerber.
+
 2003-10-19  Sergey Poznyakoff  <gray@Mirddin.farlep.net>
 
 	* AUTHORS: Updated
diff --git a/src/system.c b/src/system.c
index 58069cd7..3b824806 100644
--- a/src/system.c
+++ b/src/system.c
@@ -214,7 +214,7 @@ sys_spawn_shell ()
   child = xfork ();
   if (child == 0)
     {
-      execlp (shell, "-sh", "-i", 0);
+      execlp (shell, "-sh", "-i", (char *) 0);
       exec_fatal (shell);
     }
   else