diff --git a/pkgs/servers/web-apps/cryptpad/generate.sh b/pkgs/servers/web-apps/cryptpad/generate.sh
index dc4e230f316b..f1e8e5e708fe 100755
--- a/pkgs/servers/web-apps/cryptpad/generate.sh
+++ b/pkgs/servers/web-apps/cryptpad/generate.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env nix-shell
-#! nix-shell -i bash  -I nixpkgs=../../../.. -p nodePackages.node2nix -p nix
+#! nix-shell -i bash -I nixpkgs=../../../.. -p nodePackages.node2nix nix
 
 cryptpadSrc=$(nix eval '(import ../../../.. {}).cryptpad.src' --raw)
 echo "cryptpad src: $cryptpadSrc"
 
-nix-shell -I nixpkgs=https://github.com/nixos/nixpkgs/tarball/18.03 -p nodePackages.bower2nix --run "bower2nix $cryptpadSrc/bower.json bower-packages.nix"
+nix-shell -I nixpkgs=../../../.. -p '(nodePackages.override { nodejs = nodejs-10_x; }).bower2nix' --run "bower2nix $cryptpadSrc/bower.json bower-packages.nix"
 
 
 set -euo pipefail