diff --git a/Makefile b/Makefile
index 9eb36408864ae93d1eb78ec47bc6d8f493122342..26734bacea5cc80da094b94e0684daff2d743bc9 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ motivation.html : motivation.md _layouts/slides.html
 	-o $@ $<
 
 ## unittest : Run unit test (for Python 2 and 3)
-unittest: tools/check tools/validation_helpers.py tools/test_check.py
+unittest: tools/check.py tools/validation_helpers.py tools/test_check.py
 	cd tools/ && python2 test_check.py
 	cd tools/ && python3 test_check.py