diff --git a/pkgs/top-level/build-for-release.nix b/pkgs/top-level/build-for-release.nix
index 6d3c1f08e30e..3f4944cc0657 100644
--- a/pkgs/top-level/build-for-release.nix
+++ b/pkgs/top-level/build-for-release.nix
@@ -105,7 +105,7 @@ let {
     thunderbird
     tightvnc
 #    transformers
-    uml
+#    uml
     unzip
     uulib
     valgrind