diff --git a/readme.md b/readme.md
index 9bbc770f..b9f810f9 100644
--- a/readme.md
+++ b/readme.md
@@ -76,14 +76,14 @@ require('@zeit/ncc')('/path/to/input', {
   filterAssetBase: process.cwd(), // default
   minify: false, // default
   sourceMap: false, // default
-  sourceMapBasePrefix: '../' // default treats sources as output-relative
+  sourceMapBasePrefix: '../', // default treats sources as output-relative
   // when outputting a sourcemap, automatically include
   // source-map-support in the output file (increases output by 32kB).
   sourceMapRegister: true, // default
   watch: false, // default
   v8cache: false, // default
   quiet: false, // default
-  debugLog = false // default
+  debugLog: false // default
 }).then(({ code, map, assets }) => {
   console.log(code);
   // Assets is an object of asset file names to { source, permissions, symlinks }