diff --git a/.coveragerc b/.coveragerc
index 077e3e6f4..e2e8fe401 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -8,6 +8,7 @@ omit =
     */borg/fuse.py
     */borg/support/*
     */borg/testsuite/*
+    */borg/hash_sizes.py
 
 [report]
 exclude_lines =