diff --git a/pkgs/applications/graphics/phototonic/default.nix b/pkgs/applications/graphics/phototonic/default.nix
index 1c6c1b43354..7020bf6c83e 100644
--- a/pkgs/applications/graphics/phototonic/default.nix
+++ b/pkgs/applications/graphics/phototonic/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchFromGitHub, qtbase, qmake, exiv2 }:
+{ mkDerivation, stdenv, fetchFromGitHub, qtbase, qmake, exiv2 }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   pname = "phototonic";
   version = "2.1";