diff --git a/Makefile b/Makefile
index b524cd2..7180525 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ PROJECT_MAKEFILE := project.mk
 PROJECT_NAME = project-makefile
 PROJECT_DIRS = backend contactpage home privacy siteuser
 
-WAGTAIL_CLEAN_DIRS = home search backend sitepage siteuser privacy frontend contactpage model_form_demo logging_demo payment
+WAGTAIL_CLEAN_DIRS = home search backend sitepage siteuser privacy frontend contactpage model_form_demo logging_demo payment node_modules
 WAGTAIL_CLEAN_FILES = README.rst .dockerignore Dockerfile manage.py requirements.txt requirements-test.txt docker-compose.yml
 
 REVIEW_EDITOR = subl