diff --git a/pkgs/by-name/po/portmod/package.nix b/pkgs/by-name/po/portmod/package.nix
index a0e7d38d178c..035eaee1ed18 100644
--- a/pkgs/by-name/po/portmod/package.nix
+++ b/pkgs/by-name/po/portmod/package.nix
@@ -25,7 +25,8 @@ let
     inherit src version;
     pname = "portmod-rust";
 
-    cargoHash = "sha256-sAjgGVVjgXaWbmN/eGEvatYjkHeFTZNX1GXFcJqs3GI=";
+    useFetchCargoVendor = true;
+    cargoHash = "sha256-a6brse/qXzO7H46zUrOJzyOicKPiKGISp2VhdxAVUUI=";
 
     nativeBuildInputs = [
       python3Packages.python