diff --git a/README b/README
index d25c9c22..7bb9d3a8 100644
--- a/README
+++ b/README
@@ -149,6 +149,7 @@ Options for both config file and command line:
 --expiry|-E <arg>   Upper bound on how many seconds after getting work we consider a share from it stale (default: 120)
 --failover-only     Don't leak work to backup pools when primary pool is lagging
 --fix-protocol      Do not redirect to a different getwork protocol (eg. stratum)
+--hotplug <arg>     Set hotplug check time to <arg> seconds (0=never default: 5) - only with libusb
 --kernel-path|-K <arg> Specify a path to where bitstream and kernel files are (default: "/usr/local/bin")
 --load-balance      Change multipool strategy from failover to efficiency based balance
 --log|-l <arg>      Interval in seconds between log output (default: 5)