diff --git a/rdf/base/idl/nsIRDFDataSource.idl b/rdf/base/idl/nsIRDFDataSource.idl
index c95e5b0cf8ba..2fc3724e2630 100644
--- a/rdf/base/idl/nsIRDFDataSource.idl
+++ b/rdf/base/idl/nsIRDFDataSource.idl
@@ -19,10 +19,15 @@
 #include "nsISupports.idl"
 #include "nsIRDFResource.idl"
 #include "nsIRDFNode.idl"
-#include "nsISimpleEnumerator.idl"
+#include "nsIEnumerator.idl"
 #include "nsIEnumerator.idl"
 #include "nsIRDFObserver.idl"
-#include "nsISupportsArray.idl"
+
+// XXX Because this isn't really and interface :(
+[ptr] native nsISupportsArray(nsISupportsArray);
+%{C++
+#include "nsISupportsArray.h"
+%}
 
 [scriptable, uuid(0F78DA58-8321-11d2-8EAC-00805F29F370)]
 interface nsIRDFDataSource : nsISupports