diff --git a/src/compressed-size.js b/src/compressed-size.js
index 6d61f78d..0fd06307 100644
--- a/src/compressed-size.js
+++ b/src/compressed-size.js
@@ -1,5 +1,6 @@
 const { warn } = require('prettycli')
 const gzip = require('gzip-size')
+let brotli
 
 const getCompressedSize = (data, compression = 'gzip') => {
   let size
@@ -9,12 +10,12 @@ const getCompressedSize = (data, compression = 'gzip') => {
       break
     case 'brotli':
       try {
-        const brotli = require('brotli-size')
-        size = brotli.sync(data)
+        brotli = require('brotli-size')
       } catch (e) {
         warn(`Missing optional dependency. Install it with:
           npm install --save brotli-size`)
       }
+      size = brotli ? brotli.sync(data) : 0
       break
     case 'none':
     default: