diff --git a/Makefile b/Makefile
index a246f4805b..5e8542357b 100644
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@ license: LICENSE.md
 regen-apis: | clean-all-api clean-all-cli gen-all-api gen-all-cli license
 
 test-gen: $(PYTHON)
-	$(PYTEST) src
+	$(PYTEST) --cov=src src
 
 test: test-gen
 
diff --git a/requirements.txt b/requirements.txt
index c2cef3623b..a278ddd44f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,5 @@ mako
 pyyaml
 mkdocs==0.16.3
 pytest
+pytest-cov
 importlib_resources