diff --git a/pkgs/applications/graphics/evilpixie/default.nix b/pkgs/applications/graphics/evilpixie/default.nix
index 49611f1709b7..8e6d8328a3cb 100644
--- a/pkgs/applications/graphics/evilpixie/default.nix
+++ b/pkgs/applications/graphics/evilpixie/default.nix
@@ -12,14 +12,14 @@
 , impy
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "evilpixie";
   version = "0.3.1";
 
   src = fetchFromGitHub {
     owner = "bcampbell";
     repo = "evilpixie";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     sha256 = "sha256-+DdAN+xDOYxLgLHUlr75piTEPrWpuOyXvxckhBEl7yU=";
   };
 
@@ -51,5 +51,4 @@ stdenv.mkDerivation rec {
     # https://github.com/bcampbell/evilpixie/issues/28
       stdenv.isAarch64;
   };
-}
-
+})