diff --git a/config/updateall/scripts/05-rustup b/config/updateall/scripts/05-rustup
index 0409ae1..ba79c9d 100755
--- a/config/updateall/scripts/05-rustup
+++ b/config/updateall/scripts/05-rustup
@@ -1,5 +1,3 @@
-#!/usr/bin/env
-set -- rustup update
-
+#!/usr/bin/env sh
 set -x
-exec "$@"
+exec rustup update