diff --git a/dom/base/nsDOMClassInfoClasses.h b/dom/base/nsDOMClassInfoClasses.h
index c692b0228ee..49646a60ee9 100644
--- a/dom/base/nsDOMClassInfoClasses.h
+++ b/dom/base/nsDOMClassInfoClasses.h
@@ -425,7 +425,3 @@ DOMCI_CLASS(MozTimeManager)
 #ifdef MOZ_WEBRTC
 DOMCI_CLASS(DataChannel)
 #endif
-
-#ifdef MOZ_AUDIO_CHANNEL_MANAGER
-DOMCI_CLASS(AudioChannelManager)
-#endif