diff --git a/README.md b/README.md
index b663cd5..d739fa7 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,7 @@ Options:
   -s <frequency>   Sampling frequency [Hz] (default: 2600000)
   -b <iq_bits>     I/Q data format [1/8/16] (default: 16)
   -i               Disable ionospheric delay for spacecraft scenario
+  -p               Disable path loss and hold power level constant
   -v               Show details about simulated channels
 ```