diff --git a/README.md b/README.md
index bf5675ff..63cd9ac8 100644
--- a/README.md
+++ b/README.md
@@ -26,10 +26,10 @@ pytest
 This will run the complete panel of tests and report on coverage in the locations specified
 by the pytest.ini file.
 
-To run tests in a specific service, e.g. inside of model_data, simple run
+To run tests in a specific service, e.g. inside of model_data, simply run
 
 ```commandline
-pytest model_data
+pytest --cov-config=model_data/.coveragerc --cov=model_data
 ```
 
 This will produce the test results and coverage reports
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