diff --git a/.coveragerc b/.coveragerc
index 62f215fd..fa5cdb96 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -7,4 +7,5 @@ omit =
     model_data/__init__.py
     model_data/app.py
     model_data/plotting/*
-    recommendations/rdsap_tables.py
\ No newline at end of file
+    recommendations/rdsap_tables.py
+    model_data/simulation_system/*
\ No newline at end of file