diff --git a/Running-from-source.md b/Running-from-source.md
index edc27ee..85f0872 100644
--- a/Running-from-source.md
+++ b/Running-from-source.md
@@ -40,6 +40,7 @@ Arguments:
  -t FILE        write player status to FILE in CSV format
  -d FILE        write raw JSON data to FILE
  -n             send data to EDDN
+ -p CMDR        Returns data from the specified player account
 ```
 
 The program returns one of the following exit codes. Further information may be written to stderr.