diff --git a/src/main.cpp b/src/main.cpp
index 36fc952..2497f74 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -42,7 +42,7 @@
         nlsr.setConfFileName(optarg);
         break;
       case 'd':
-        nlsr.setIsDaemonProcess(optarg);
+        nlsr.setIsDaemonProcess(true);
         break;
       case 'p':
       {
@@ -66,6 +66,9 @@
   INIT_LOGGERS(nlsr.getConfParameter().getLogDir());
   INIT_LOGGER("Main");
   nlsr.initialize();
+  if (nlsr.getIsSetDaemonProcess()) {
+    nlsr.daemonize();
+  }
   try {
     nlsr.startEventLoop();
   }