diff --git a/Makefile b/Makefile
index 23393da..5faff24 100644
--- a/Makefile
+++ b/Makefile
@@ -93,7 +93,8 @@ clean:
 	find ./ -name "*.log" -delete
 	find ./ -name "*.pyc" -delete
 	rm -rf $(PROG)-$(REL_VERSION)
-
+	rm -f test/data.csv
+	rm -f test/data.raw
 
 test:
 	@echo "\nTESTS\n"