Index: trunk/FACT++/src/fadctrl.cc
===================================================================
--- trunk/FACT++/src/fadctrl.cc	(revision 15104)
+++ trunk/FACT++/src/fadctrl.cc	(revision 15105)
@@ -2180,5 +2180,5 @@
     po::options_description control("FAD control options");
     control.add_options()
-        ("quiet,q",  po_bool(), "Disable printing contents of all received messages in clear text.")
+        ("quiet,q",  po_bool(true), "Disable printing contents of all received messages in clear text.")
         ("hex-out",  po_bool(), "Enable printing contents of all printed messages also as hex data.")
         ("data-out", po_bool(), "Enable printing received event data.")