diff --git a/pkgs/by-name/ca/cavalcade/package.nix b/pkgs/by-name/ca/cavalcade/package.nix
index 368c0256b850..409572deb6a7 100644
--- a/pkgs/by-name/ca/cavalcade/package.nix
+++ b/pkgs/by-name/ca/cavalcade/package.nix
@@ -12,7 +12,7 @@
   fetchurl,
 }:
 
-python3Packages.buildPythonApplication rec {
+python3Packages.buildPythonApplication (finalAttrs: {
   pname = "cavalcade";
   version = "0.8";
   pyproject = true;
@@ -20,7 +20,7 @@ python3Packages.buildPythonApplication rec {
   src = fetchFromGitHub {
     owner = "worron";
     repo = "cavalcade";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-VyWOPNidN0+pfuxsgPWq6lI5gXQsiRpmYjQYjZW6i9w=";
   };
 
@@ -71,4 +71,4 @@ python3Packages.buildPythonApplication rec {
     license = lib.licenses.gpl3Only;
     maintainers = with lib.maintainers; [ sigmanificient ];
   };
-}
+})