diff --git a/reactos/subsys/csrss/api/wapi.c b/reactos/subsys/csrss/api/wapi.c
index 75859259f9f..c3f692b7214 100644
--- a/reactos/subsys/csrss/api/wapi.c
+++ b/reactos/subsys/csrss/api/wapi.c
@@ -165,7 +165,7 @@ ClientConnectionThread(HANDLE ServerPort)
     
     /* Close the port and exit the thread */
     NtClose(ServerPort);
-    NtTerminateThread(NtCurrentThread(), STATUS_SUCCESS);
+    RtlExitUserThread(STATUS_SUCCESS);
 }
 
 /**********************************************************************