diff --git a/Lib/idlelib/help_about.py b/Lib/idlelib/help_about.py
index 362dcbb1df1..65d94fce712 100644
--- a/Lib/idlelib/help_about.py
+++ b/Lib/idlelib/help_about.py
@@ -145,5 +145,7 @@ def Ok(self, event=None):
         self.destroy()
 
 if __name__ == '__main__':
+    import unittest
+    unittest.main('idlelib.idle_test.test_helpabout', verbosity=2, exit=False)
     from idlelib.idle_test.htest import run
     run(AboutDialog)