diff --git a/mailnews/local/src/nsMovemailIncomingServer.cpp b/mailnews/local/src/nsMovemailIncomingServer.cpp
index b1c2552719a..c43cc93d151 100644
--- a/mailnews/local/src/nsMovemailIncomingServer.cpp
+++ b/mailnews/local/src/nsMovemailIncomingServer.cpp
@@ -70,7 +70,8 @@ NS_IMPL_ISUPPORTS_INHERITED2(nsMovemailIncomingServer,
 
 nsMovemailIncomingServer::nsMovemailIncomingServer()
 {    
-    NS_INIT_ISUPPORTS();
+  NS_INIT_ISUPPORTS();
+  m_canHaveFilters = PR_TRUE;
 }
 
 nsMovemailIncomingServer::~nsMovemailIncomingServer()