diff --git a/src/core/oauth2-authorize.js b/src/core/oauth2-authorize.js
index f09d379c..2e36010e 100644
--- a/src/core/oauth2-authorize.js
+++ b/src/core/oauth2-authorize.js
@@ -69,7 +69,7 @@ export default function authorize ( { auth, authActions, errActions, configs, au
   // pass action authorizeOauth2 and authentication data through window
   // to authorize with oauth2
 
-  let callback;
+  let callback
   if (flow === "implicit") {
     callback = authActions.preAuthorizeImplicit
   } else if (authConfigs.useBasicAuthenticationWithAccessCodeGrant) {