diff --git a/src/pokerth.cpp b/src/pokerth.cpp
index 9dbfeb2c..6e20de5e 100755
--- a/src/pokerth.cpp
+++ b/src/pokerth.cpp
@@ -85,11 +85,11 @@ int main( int argc, char **argv )
 	curl_global_init(CURL_GLOBAL_NOTHING);
 
 	/////// can be removed for non-qt-guis ////////////
-	QApplication a( argc, argv );
+	QtSingleApplication a( argc, argv );
 
-	/*if (a.sendMessage("Wake up!")) {
+	if (a.sendMessage("Wake up!")) {
 		return 0;
-	}*/
+	}
 
 #ifdef __APPLE__
 	// The following needs to be done directly after the application is created.
@@ -147,7 +147,7 @@ int main( int argc, char **argv )
 	///////////////////////////////////////////////////	
 
         startWindowImpl mainWin(myConfig);
-        //a.setActivationWindow(&mainWin, true);
+		a.setActivationWindow(&mainWin, true);
 
 	int retVal = a.exec();