diff --git a/content/html/content/src/nsHTMLLinkElement.cpp b/content/html/content/src/nsHTMLLinkElement.cpp
index 71e29fe8c37..0356d940330 100644
--- a/content/html/content/src/nsHTMLLinkElement.cpp
+++ b/content/html/content/src/nsHTMLLinkElement.cpp
@@ -244,6 +244,7 @@ NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLLinkElement,
                                     nsGenericHTMLLeafElement)
   NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLLinkElement)
   NS_INTERFACE_MAP_ENTRY(nsIDOMLinkStyle)
+  NS_INTERFACE_MAP_ENTRY(nsILink)
   NS_INTERFACE_MAP_ENTRY(nsIStyleSheetLinkingElement)
   NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLLinkElement)
 NS_HTML_CONTENT_INTERFACE_MAP_END