diff --git a/docs/config.md b/docs/config.md
index f2091967f..9bf6ab873 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -52,6 +52,10 @@ Available profiles:
   Reduces daemon overhead on the system. May affect node functionality,
   performance of content discovery and data fetching may be degraded.
 
+- `randomports`
+
+  Generate random port for swarm.
+
 ## Table of Contents
 
 - [`Addresses`](#addresses)