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--- a/libupnpp/control/service.hxx
+++ b/libupnpp/control/service.hxx
@@ -53,7 +53,7 @@
     /** Construct by copying data from device and service objects.
      */
     Service(const UPnPDeviceDesc& device,
-            const UPnPServiceDesc& service);
+            const UPnPServiceDesc& service, bool doSubscribe = true);
 
     /** An empty one */
     Service() : m_reporter(0) {}