diff --git a/pkgs/by-name/kl/klassy/package.nix b/pkgs/by-name/kl/klassy/package.nix
index 8a35056e55c5..68ea9fb1f78c 100644
--- a/pkgs/by-name/kl/klassy/package.nix
+++ b/pkgs/by-name/kl/klassy/package.nix
@@ -54,7 +54,9 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "BUILD_QT5" false)
   ];
 
-  passthru.updateScript = gitUpdater { };
+  passthru.updateScript = gitUpdater {
+    rev-prefix = "v";
+  };
 
   meta = {
     description = "Highly customizable binary Window Decoration, Application Style and Global Theme plugin for recent versions of the KDE Plasma desktop";