diff --git a/log4j-server/src/main/java/org/apache/logging/log4j/server/AbstractSocketServer.java b/log4j-server/src/main/java/org/apache/logging/log4j/server/AbstractSocketServer.java
index aff7eb1..e2dff83 100644
--- a/log4j-server/src/main/java/org/apache/logging/log4j/server/AbstractSocketServer.java
+++ b/log4j-server/src/main/java/org/apache/logging/log4j/server/AbstractSocketServer.java
@@ -65,7 +65,7 @@
         private boolean interactive;
 
         @Parameter(names = { "--port",
-                "-p" }, validateWith = PositiveInteger.class, description = "Server socket port.")
+                "-p" }, validateWith = PositiveInteger.class, description = "The server port number, or 0 to automatically allocate a port number.")
         private int port;
 
         @Parameter(names = { "--localbindaddress",