diff --git a/channels/disp/client/disp_main.c b/channels/disp/client/disp_main.c
index dff908a1d..d6462b43b 100644
--- a/channels/disp/client/disp_main.c
+++ b/channels/disp/client/disp_main.c
@@ -284,7 +284,6 @@ static UINT disp_on_new_channel_connection(IWTSListenerCallback* pListenerCallba
 
 	WINPR_ASSERT(listener_callback);
 	WINPR_ASSERT(pChannel);
-	WINPR_ASSERT(Data);
 	WINPR_ASSERT(pbAccept);
 	WINPR_ASSERT(ppCallback);