diff --git a/Makefile b/Makefile
index 203b794..a99ef4d 100644
--- a/Makefile
+++ b/Makefile
@@ -52,6 +52,7 @@ clean:
 	rm -rf test-packages/__pycache__
 	rm -rf test-packages/qubesagent.egg-info
 	rm -rf __pycache__
+	rm -f .coverage
 
 all:
 	make -C misc