diff --git a/.github/check-js.sh b/.github/check-js.sh
index 891c5182ac..ef968375fd 100755
--- a/.github/check-js.sh
+++ b/.github/check-js.sh
@@ -18,3 +18,4 @@ node_modules/xo/cli.js "phpBB/adm/style/*.js"
 node_modules/xo/cli.js "phpBB/assets/javascript/*.js"
 node_modules/xo/cli.js "phpBB/style/all/js/*.js"
 node_modules/xo/cli.js "phpBB/style/prosilver/template/*.js"
+node_modules/xo/cli.js "gulpfile.js"
diff --git a/package.json b/package.json
index 5240c99e42..393a0cb72e 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,8 @@
 			"computed-property-spacing": "off",
 			"space-in-parens": "off",
 			"capitalized-comments": "off",
-			"no-lonely-if": "off"
+			"no-lonely-if": "off",
+			"unicorn/prefer-module": "off"
 		},
 		"env": [
 			"es6",