diff --git a/scripts/pppassword b/scripts/pppassword
index 83af05c..e6d67f4 100755
--- a/scripts/pppassword
+++ b/scripts/pppassword
@@ -1,4 +1,5 @@
-#!/usr/bin/env python3
+#! /usr/bin/env nix-shell
+#! nix-shell -i python3 -p python3
 import sys
 import os
 import secrets
diff --git a/scripts/wordpw b/scripts/wordpw
index 4306ad5..f211b8d 100755
--- a/scripts/wordpw
+++ b/scripts/wordpw
@@ -1,4 +1,5 @@
-#!/usr/bin/env python3
+#! /usr/bin/env nix-shell
+#! nix-shell -i python3 -p python3
 import sys
 import os
 import secrets