diff --git a/lib/cli/storage-plugin-apk/index.js b/lib/cli/storage-plugin-apk/index.js
index 40833227..ae33d5ce 100644
--- a/lib/cli/storage-plugin-apk/index.js
+++ b/lib/cli/storage-plugin-apk/index.js
@@ -21,7 +21,7 @@ module.exports.builder = function(yargs) {
     , demand: true
     })
     .option('cache-dir', {
-      describe: 'The location where to cache images.'
+      describe: 'The location where to cache APK files.'
     , type: 'string'
     , default: os.tmpdir()
     })