diff --git a/MQTTSNGateway/src/MQTTSNGateway.cpp b/MQTTSNGateway/src/MQTTSNGateway.cpp
index 23f7e78..afd0197 100644
--- a/MQTTSNGateway/src/MQTTSNGateway.cpp
+++ b/MQTTSNGateway/src/MQTTSNGateway.cpp
@@ -216,7 +216,7 @@ void Gateway::initialize(int argc, char** argv)
 	    {
             if (getParam("PredefinedTopicFile", param) == 0)
             {
-                fileName =*getConfigDirName() + string(param);
+                fileName = string(param);
             }
             else
             {