diff --git a/c4ctrl.py b/c4ctrl.py
index b56b925..032efe1 100755
--- a/c4ctrl.py
+++ b/c4ctrl.py
@@ -1340,7 +1340,7 @@ if __name__ == "__main__": # {{{1
         '^' as NOT, AND, OR and XOR operators. Current switch states will be \
         printed to stdout if BINARY_CODE is '-'. Will show usage information \
         and ask for input if BINARY_CODE is omitted. Will read from stdin if \
-        BINARY_CODE \ is omitted and stdin is not connected to a TTY.")
+        BINARY_CODE is omitted and stdin is not connected to a TTY.")
     group_sw.add_argument(
         "-W", nargs='?', dest="w_switch", const="", metavar="BINARY_CODE",
         help="switch lights and sockets in Wohnzimmer on/off")