diff --git a/src/cthulhu/scripts/web/speech_generator.py b/src/cthulhu/scripts/web/speech_generator.py
index b420214..11b57f2 100644
--- a/src/cthulhu/scripts/web/speech_generator.py
+++ b/src/cthulhu/scripts/web/speech_generator.py
@@ -560,6 +560,9 @@ class SpeechGenerator(speech_generator.SpeechGenerator):
         if roledescription:
             result = [roledescription]
             result.extend(self.voice(speech_generator.SYSTEM, obj=obj, **args))
+            # aria-roledescription replaces the standard role name, so return
+            # early to avoid announcing both (e.g. "Message" + "article").
+            return result
 
         role = args.get('role', AXObject.get_role(obj))
         roleSoundPresentation = cthulhu.cthulhuApp.settingsManager.getSetting('roleSoundPresentation')