diff --git a/Makefile b/Makefile
index 0346c9c..6f30394 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ cython:
 .PHONY: test
 test: clean cython
 	python setup.py build_ext -i -f
-	pytest
+	pytest tests
 
 .PHONY: lint
 lint: