diff --git a/dom/base/nsDOMClassInfo.cpp b/dom/base/nsDOMClassInfo.cpp
index 5786eee63292..99a334ca42e5 100644
--- a/dom/base/nsDOMClassInfo.cpp
+++ b/dom/base/nsDOMClassInfo.cpp
@@ -3549,7 +3549,6 @@ nsDOMClassInfo::Init()
 
   DOM_CLASSINFO_MAP_BEGIN(HTMLMediaError, nsIDOMHTMLMediaError)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMHTMLMediaError)
-    DOM_CLASSINFO_EVENT_MAP_ENTRIES
   DOM_CLASSINFO_MAP_END
 
   DOM_CLASSINFO_MAP_BEGIN(HTMLAudioElement, nsIDOMHTMLAudioElement)