diff --git a/Makefile b/Makefile
index 3b6c47f..b1b349b 100644
--- a/Makefile
+++ b/Makefile
@@ -4,13 +4,16 @@ test-requirements:
 test: test-lint test-unit test-types test-format ## Run all tests by decreasing order of priority
 
 test-format: ## Run code formatting tests
-	black --check --diff tests.py
+	black --check --diff *.py
 
 test-lint: ## Run code linting tests
-	pylint --errors-only --enable=unused-import,unused-argument --ignore=templates tests.py
+	pylint --errors-only --enable=unused-import,unused-argument --ignore=templates *.py
 
 test-unit: ## Run unit tests
 	python -m unittest run ./tests.py
 
 test-types: ## Check type definitions
-	mypy --ignore-missing-imports --implicit-reexport --strict tests.py
+	mypy --ignore-missing-imports --implicit-reexport --strict *.py
+
+format: ## Format code
+	black *.py