diff --git a/pkgs/development/compilers/strategoxt/strategoxt-0.16.nix b/pkgs/development/compilers/strategoxt/strategoxt-0.16.nix
index 28c30e64380..e87afc3bdc0 100644
--- a/pkgs/development/compilers/strategoxt/strategoxt-0.16.nix
+++ b/pkgs/development/compilers/strategoxt/strategoxt-0.16.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   builder = ./builder.sh;
 
   src = fetchurl {
-    url = http://nix.cs.uu.nl/dist/stratego/strategoxt-0.16/strategoxt-0.16;
+    url = http://nix.cs.uu.nl/dist/stratego/strategoxt-0.16/strategoxt-0.16.tar.gz;
     md5 = "8b8eabbd785faa84ec20134b63d4829e";
   };
 
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index 8e6e720ee79..03be8fb0701 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -551,10 +551,6 @@ rec {
     inherit fetchurl pkgconfig stdenv sdf aterm;
   };
 
-  # Currently, there is no useful unstable release, so we default to
-  # strategoxt.
-  strategoxt_unstable = strategoxt;
-
   strategoxtUtils = (import ../development/compilers/strategoxt/utils) {
     inherit fetchurl pkgconfig stdenv sdf strategoxt;