diff --git a/.coveragerc b/.coveragerc
index f8b5bf4648e5a0e034c37e48816ad9970c84871c..a2b0f0706c6c96375bc67127d2382f8d59593a0c 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -7,5 +7,6 @@ source =
 source =
     src/
     /nix/store/*/lib/python*/site-packages/
+    C:\hostedtoolcache\windows\Python\2.7.18\x64\Lib\site-packages\
 
 branch = True