diff --git a/include/transport/config.h b/include/transport/config.h
index aa55cd9a74ca3072d54594b3a88a2b241c134fd6..8f760fead85fef4883473a1f42fcabcd88b8250d 100644
--- a/include/transport/config.h
+++ b/include/transport/config.h
@@ -126,6 +126,7 @@ class Config {
 		boost::signal<void ()> onConfigReloaded;
 
 		void updateBackendConfig(const std::string &backendConfig);
+		boost::signal<void ()> onBackendConfigUpdated;
 
 		static Config *createFromArgs(int argc, char **argv, std::string &error, std::string &host, int &port);