diff --git a/pkgs/development/tools/analysis/snowman/default.nix b/pkgs/development/tools/analysis/snowman/default.nix
index f8f2f55c5aa7..2f7ff219081f 100644
--- a/pkgs/development/tools/analysis/snowman/default.nix
+++ b/pkgs/development/tools/analysis/snowman/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchFromGitHub, cmake, boost, qtbase }:
+{ stdenv, mkDerivation, fetchFromGitHub, cmake, boost, qtbase }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   pname = "snowman";
   version = "0.1.3";