diff --git a/oauth3.browser.js b/oauth3.browser.js
index d589900..b32c783 100644
--- a/oauth3.browser.js
+++ b/oauth3.browser.js
@@ -88,6 +88,9 @@
                 discWin.child.close();
               }
             }
+            else {
+              discWin.child.close();
+            }
 
             resolve(tokens);
           };