diff --git a/gulpfile.js b/gulpfile.js
index bf22f2a06..de2a07239 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -358,11 +358,7 @@ gulp.task('build-jekyll', (cb) => {
 	var env = Object.create(process.env)
 
 	if (argv.preview) {
-		if (argv.dev) {
-			env.JEKYLL_ENV = 'preview-dev'
-		} else {
-			env.JEKYLL_ENV = 'preview'
-		}
+		env.JEKYLL_ENV = 'preview'
 	} else {
 		env.JEKYLL_ENV = 'production'
 	}
diff --git a/package.json b/package.json
index 9b010ed49..99888a308 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,6 @@
     "start-plugins": "gulp start --with-plugins",
     "build": "gulp build",
     "preview": "gulp build --preview",
-    "preview-dev": "gulp build --preview --dev",
     "svg-optimize": "svgo -f svg/brand --pretty",
     "unused-files": "node build/unused-files.js",
     "release": "release-it",