diff --git a/mozilla/xpfc/shell/src/nsStreamManager.cpp b/mozilla/xpfc/shell/src/nsStreamManager.cpp
index 3fdf5669255..a76a4761afe 100644
--- a/mozilla/xpfc/shell/src/nsStreamManager.cpp
+++ b/mozilla/xpfc/shell/src/nsStreamManager.cpp
@@ -40,6 +40,7 @@ static NS_DEFINE_IID(kCCalXPFCXMLContentSinkCID, NS_XPFCXMLCONTENTSINK_IID);
 
 static NS_DEFINE_IID(kIStreamObjectIID,  NS_ISTREAM_OBJECT_IID);
 static NS_DEFINE_IID(kCStreamObjectCID,  NS_STREAM_OBJECT_CID);
+static NS_DEFINE_IID(kIStreamListenerIID,  NS_ISTREAMLISTENER_IID);
 
 nsStreamManager::nsStreamManager()
 {
diff --git a/mozilla/xpfc/shell/src/nsStreamObject.cpp b/mozilla/xpfc/shell/src/nsStreamObject.cpp
index 35a5bc9cf1e..d1d4e5657f7 100644
--- a/mozilla/xpfc/shell/src/nsStreamObject.cpp
+++ b/mozilla/xpfc/shell/src/nsStreamObject.cpp
@@ -31,6 +31,7 @@
 static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
 static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
 static NS_DEFINE_IID(kCStreamObject, NS_STREAM_OBJECT_CID);
+static NS_DEFINE_IID(kIStreamListenerIID,  NS_ISTREAMLISTENER_IID);
 
 nsStreamObject::nsStreamObject()
 {