diff --git a/MAC/APL/Appl_Controller/ACuserMenu.cc b/MAC/APL/Appl_Controller/ACuserMenu.cc
index dfb8abc757398933c4990818e395b85c9883c9e4..999b10c58fc66b8a06fe2b0cd4998328c374d372 100644
--- a/MAC/APL/Appl_Controller/ACuserMenu.cc
+++ b/MAC/APL/Appl_Controller/ACuserMenu.cc
@@ -313,7 +313,7 @@ void showMenu()
 	cout << "Enter letter of your choice: ";
 }
 
-int main (int argc, char *argv[]) {
+int main (int /*argc*/, char *argv[]) {
 	ConfigLocator	aCL;
 	string			progName(basename(argv[0]));
 #ifdef HAVE_LOG4CPLUS