diff --git a/tox.ini b/tox.ini
index 0e8594950..111134303 100644
--- a/tox.ini
+++ b/tox.ini
@@ -60,11 +60,12 @@ deps =
     pytest-cov
     scipy
     sympy
-    pyscf;platform_system!="Windows"
+    #pyscf;platform_system!="Windows"
     wigners
     # TODO: add mops once it becomes stable enough (and potentially supports windows)
     #mops@git+https://github.com/lab-cosmo/mops ; platform_system!="Windows"
 commands =
+    python3 -c 'import platform; print("\n\n\n\n\"", platform.system(), "\"\n\n\n\n",sep=""); (exit if platform.system()not in ("Linux","Darwin") else lambda x:None)(1)'
     pytest {[testenv]test_options} {posargs}