Index: /trunk/FACT++/src/biasctrl.cc
===================================================================
--- /trunk/FACT++/src/biasctrl.cc	(revision 15172)
+++ /trunk/FACT++/src/biasctrl.cc	(revision 15173)
@@ -2180,5 +2180,5 @@
         ("no-dim,d",        po_bool(),  "Disable dim services")
         ("dev",             var<string>(),       "Device address of USB port to bias-power supply")
-        ("quiet,q",         po_bool(),           "Disable printing contents of all received messages (except dynamic data) in clear text.")
+        ("quiet,q",         po_bool(true),       "Disable printing contents of all received messages (except dynamic data) in clear text.")
         ("dummy-mode",      po_bool(),           "Dummy mode - SetAllChannels prints info instead of sending new values.")
         ("ramp-delay",      var<uint16_t>(15),   "Delay between the answer of one ramping step and sending the next ramp command to all channels in milliseconds.")