diff --git a/CMakeLists.txt b/CMakeLists.txt
index 84a4013..19706ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,7 +53,7 @@ idf_component_register(
 			 esp_http_server
 			 esp_eth
 			 esp_modem
-#			 ttn-esp32
+			 ttn-esp32
 			
 			 
 	PRIV_REQUIRES ${libespfs_PRIV_REQUIRES}
diff --git a/src/SysComm.c b/src/SysComm.c
index e632e4f..bd16022 100644
--- a/src/SysComm.c
+++ b/src/SysComm.c
@@ -48,7 +48,7 @@
 
 #define MAX_JSON_DATA_SIZE 1024
 sys_error_code (*CustomPayloadTypeHandler)(data_message_t *MSG);
-esp_err_t (*CustomSaveConf)(void);
+void (*CustomSaveConf)(void);
 
 void regCustomPayloadTypeHandler(sys_error_code (*payload_handler)(data_message_t *MSG))
 {