diff --git a/conf.c b/conf.c
index fe293cd..ca54dcd 100644
--- a/conf.c
+++ b/conf.c
@@ -374,8 +374,8 @@ struct {
 	{ "prevgroup", kbfunc_client_prevgroup, 0, 0 },
 	{ "maximize", kbfunc_client_maximize, KBFLAG_NEEDCLIENT, 0 },
 	{ "vmaximize", kbfunc_client_vmaximize, KBFLAG_NEEDCLIENT, 0 },
-	{ "exec", kbfunc_exec, 0, CWM_EXEC_PROGRAM },
-	{ "exec_wm", kbfunc_exec, 0, CWM_EXEC_WM },
+	{ "exec", kbfunc_exec, 0, (void *)CWM_EXEC_PROGRAM },
+	{ "exec_wm", kbfunc_exec, 0, (void *)CWM_EXEC_WM },
 	{ "ssh", kbfunc_ssh, 0, 0 },
 	{ "terminal", kbfunc_term, 0, 0 },
 	{ "lock", kbfunc_lock, 0, 0 },