diff --git a/.gitignore b/.gitignore
index 872d716eb..8d170e61a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -96,6 +96,12 @@ freeipa2-dev-doc
 /init/tmpfilesd/ipa.conf
 
 !/install/ui/doc/Makefile.in
+/install/ui/node_modules/
+/install/ui/package-lock.json 
+# package-lock file can be commited, but it makes sense for npm packages.
+# It stores informations about changes in node_modules. For now it is not
+# very useful
+# More info: https://docs.npmjs.com/files/package-lock.json
 /install/ui/release
 /install/ui/css/ipa.css
 /install/ui/src/dojo
diff --git a/install/ui/Makefile.am b/install/ui/Makefile.am
index 773395832..8f9a9556f 100644
--- a/install/ui/Makefile.am
+++ b/install/ui/Makefile.am
@@ -32,3 +32,6 @@ EXTRA_DIST =                            \
 
 install-data-hook:
 	$(INSTALL) -d -m 755 $(DESTDIR)$(appdir)/js/plugins
+
+clean-local:
+	rm -rf package-lock.json node_modules