diff --git a/artiq-fast/windows/run-test.nix b/artiq-fast/windows/run-test.nix
index eb64be5..76888e5 100644
--- a/artiq-fast/windows/run-test.nix
+++ b/artiq-fast/windows/run-test.nix
@@ -22,15 +22,19 @@ let
       conda-packages-put = pkgs.lib.strings.concatStringsSep "\n"
           ( (map (package: ''win-put ${package} 'fake-channel/noarch' '') conda-deps-noarch)
              ++ (map (package: ''win-put ${package} 'fake-channel/win-64' '') conda-deps-win-64) );
+      conda-packages-legacy-put = if artiq7 then "" else
+        ''
+        win-put ${artiqpkgs.conda-windows-binutils-or1k}/win-64/*.tar.bz2 'fake-channel/win-64'
+        win-put ${artiqpkgs.conda-windows-llvm-or1k}/win-64/*.tar.bz2 'fake-channel/win-64'
+        win-put ${artiqpkgs.conda-windows-llvmlite-artiq}/win-64/*.tar.bz2 'fake-channel/win-64'
+        '';
     in
       ''
       win-exec 'mkdir fake-channel && mkdir fake-channel\noarch && mkdir fake-channel\win-64'
 
       ${conda-packages-put}
 
-      win-put ${artiqpkgs.conda-windows-binutils-or1k}/win-64/*.tar.bz2 'fake-channel/win-64'
-      win-put ${artiqpkgs.conda-windows-llvm-or1k}/win-64/*.tar.bz2 'fake-channel/win-64'
-      win-put ${artiqpkgs.conda-windows-llvmlite-artiq}/win-64/*.tar.bz2 'fake-channel/win-64'
+      ${conda-packages-legacy-put}
 
       win-put ${artiqpkgs.conda-pythonparser}/noarch/*.tar.bz2 'fake-channel/noarch'
       win-put ${artiqpkgs.conda-sipyco}/noarch/*.tar.bz2 'fake-channel/noarch'