diff --git a/shell.nix b/shell.nix
index 046f0990c183b0f725c94345a798773e8e1460d8..7eeada493e56900ee734c0009b27ad4d0df90d21 100644
--- a/shell.nix
+++ b/shell.nix
@@ -6,7 +6,7 @@ in
 pkgs.mkShell {
   NIX_PATH = "nixpkgs=${pkgs.path}";
   buildInputs = [
-    pkgs.morph
+    nixpkgs.morph
     stable2105.vagrant
     pkgs.jp
   ];