diff --git a/reactos/lib/drivers/ip/transport/tcp/event.c b/reactos/lib/drivers/ip/transport/tcp/event.c
index 8b8a6be6475..bd67997dc14 100644
--- a/reactos/lib/drivers/ip/transport/tcp/event.c
+++ b/reactos/lib/drivers/ip/transport/tcp/event.c
@@ -54,8 +54,6 @@ void TCPPacketSendComplete( PVOID Context,
                 PNDIS_PACKET NdisPacket,
                 NDIS_STATUS NdisStatus ) {
     TI_DbgPrint(DEBUG_TCP,("called %x\n", NdisPacket));
-    ASSERT_LOCKED(&TCPLock);
-
     FreeNdisPacket(NdisPacket);
     TI_DbgPrint(DEBUG_TCP,("done\n"));
 }