diff --git a/dlls/webservices/proxy.c b/dlls/webservices/proxy.c
index cd90e361ee0..5ff07f7f2c3 100644
--- a/dlls/webservices/proxy.c
+++ b/dlls/webservices/proxy.c
@@ -235,6 +235,15 @@ HRESULT WINAPI WsCloseServiceProxy( WS_SERVICE_PROXY *handle, const WS_ASYNC_CON
     return close_channel( proxy->channel );
 }
 
+/**************************************************************************
+ *          WsAbortServiceProxy		[webservices.@]
+ */
+HRESULT WINAPI WsAbortServiceProxy( WS_SERVICE_PROXY *handle, WS_ERROR *error )
+{
+    FIXME( "%p %p\n", handle, error );
+    return E_NOTIMPL;
+}
+
 /**************************************************************************
  *          WsCall		[webservices.@]
  */
diff --git a/dlls/webservices/webservices.spec b/dlls/webservices/webservices.spec
index 863e92633c1..fb9a1bc5458 100644
--- a/dlls/webservices/webservices.spec
+++ b/dlls/webservices/webservices.spec
@@ -3,7 +3,7 @@
 @ stub WsAbortChannel
 @ stub WsAbortListener
 @ stub WsAbortServiceHost
-@ stub WsAbortServiceProxy
+@ stdcall WsAbortServiceProxy(ptr ptr)
 @ stub WsAcceptChannel
 @ stdcall WsAddCustomHeader(ptr ptr long ptr long long ptr)
 @ stub WsAddErrorString
diff --git a/include/webservices.h b/include/webservices.h
index 5ce762104e6..8e1270f17c9 100644
--- a/include/webservices.h
+++ b/include/webservices.h
@@ -1366,6 +1366,7 @@ struct _WS_PROXY_MESSAGE_CALLBACK_CONTEXT
     void *state;
 };
 
+HRESULT WINAPI WsAbortServiceProxy(WS_SERVICE_PROXY*, WS_ERROR*);
 HRESULT WINAPI WsAddCustomHeader(WS_MESSAGE*, const WS_ELEMENT_DESCRIPTION*, WS_WRITE_OPTION,
                                  const void*, ULONG, ULONG, WS_ERROR*);
 HRESULT WINAPI WsAddMappedHeader(WS_MESSAGE*, const WS_XML_STRING*, WS_TYPE, WS_WRITE_OPTION,