diff --git a/spack.yaml b/spack.yaml
index 7bdfa739d88ac59bc318858eabcc3c0e8010e1a6..74ced3bf9fdf407cb7c53bceadaa9069dc693e75 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -29,7 +29,7 @@ spack:
     - py-formencode
     - tvb-framework ^binutils+ld+gold
     - pynn-brainscales@2.0-rc6 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
-    # - hxtorch@2.0-rc6 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
+    - hxtorch@2.0-rc6 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
     - py-neo
     #- py-cerebstats
     #- py-cerebunit