diff --git a/gulp/sass.js b/gulp/sass.js
index 0e44db99b52..79cb4e4ced8 100644
--- a/gulp/sass.js
+++ b/gulp/sass.js
@@ -53,6 +53,7 @@ module.exports = (gulp, plugins, blueprint) => {
 
         const postcssOptions = {
             to : blueprint.destPath(project, "dist.css"),
+            map: { inline: false },
         };
         const postcssPlugins = [
             // inline all imports
@@ -79,7 +80,7 @@ module.exports = (gulp, plugins, blueprint) => {
             .pipe(plugins.stripCssComments({ preserve: /^\*/ }))
             .pipe(plugins.replace(/\n{3,}/g, "\n\n"))
             // see https://github.com/floridoo/vinyl-sourcemaps-apply/issues/11#issuecomment-231220574
-            .pipe(plugins.sourcemaps.write(undefined, { sourceRoot: null }))
+            .pipe(plugins.sourcemaps.write(".", { sourceRoot: null }))
             .pipe(blueprint.dest(project))
             .pipe(plugins.connect.reload());
     });
diff --git a/package.json b/package.json
index 9553e3b0deb..913b7745457 100644
--- a/package.json
+++ b/package.json
@@ -7,9 +7,11 @@
     "bootstrap": "lerna bootstrap",
     "build:landing": "(cd packages/landing; npm run build)",
     "build:gulp": "NODE_ENV='\"production\"' gulp build",
-    "build:site": "npm-run-all build:gulp build:landing copy:docs copy:landing",
-    "copy:docs": "cp -r packages/docs/dist docs/docs",
-    "copy:landing": "cp -r packages/landing/dist/* docs/.",
+    "build:site": "npm-run-all build:gulp build:landing clean:docs copy:docs copy:landing delete:doc-source-maps",
+    "clean:docs": "rm -rf docs && git checkout docs/CNAME",
+    "copy:docs": "cp -rf packages/docs/dist docs/docs",
+    "copy:landing": "cp -rf packages/landing/dist/* docs/.",
+    "delete:doc-source-maps" : "find docs -name '*.map' -type f -delete",
     "serve": "http-server docs"
   },
   "dependencies": {