diff --git a/lib/config-util.js b/lib/config-util.js
index 41c9fbd03..8ee1ec725 100644
--- a/lib/config-util.js
+++ b/lib/config-util.js
@@ -47,7 +47,7 @@ Config.buildYargs = function (cwd) {
       alias: 'r',
       describe: 'coverage reporter(s) to use',
       default: 'text',
-      globa: false
+      global: false
     })
     .option('report-dir', {
       describe: 'directory to output coverage reports in',