diff --git a/README.md b/README.md
index bdf6a236..6f03a2d8 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ It moves every `require("style.css")` in entry chunks into a separate css output
 Advantages:
 
 * Fewer style tags (older IE has a limit)
-* CSS SourceMap (with `devtool: "sourcemap"` and `css-loader?sourceMap`)
+* CSS SourceMap (with `devtool: "source-map"` and `css-loader?sourceMap`)
 * CSS requested in parallel
 * CSS cached separate
 * Faster runtime (less code and DOM operations)
diff --git a/example/webpack.config.js b/example/webpack.config.js
index 7978b927..e3d1f7cb 100644
--- a/example/webpack.config.js
+++ b/example/webpack.config.js
@@ -23,7 +23,7 @@ module.exports = {
 			{ test: /\.png$/, loader: "file-loader" }
 		]
 	},
-	devtool: "sourcemap",
+	devtool: "source-map",
 	plugins: [
 		new ExtractTextPlugin("css/[name].css?[hash]-[chunkhash]-[contenthash]-[name]", {
 			disable: false,
@@ -31,4 +31,4 @@ module.exports = {
 		}),
 		new webpack.optimize.CommonsChunkPlugin("c", "c.js")
 	]
-};
\ No newline at end of file
+};