diff --git a/webapp.nix b/webapp.nix
index 16278c8..66c0524 100644
--- a/webapp.nix
+++ b/webapp.nix
@@ -24,7 +24,7 @@ let
       fetcherVersion = 3;
     };
 
-    nativeBuildInputs = [ pkgs.nodejs_20 pkgs.pnpmConfigHook ];
+    nativeBuildInputs = [ pkgs.nodejs_20 pkgs.pnpm pkgs.pnpmConfigHook ];
 
     # Skip Electron binary download (we're building a web app, not desktop)
     ELECTRON_SKIP_BINARY_DOWNLOAD = "1";