diff --git a/docs/sources/use/port_redirection.md b/docs/sources/use/port_redirection.md
index 33ac9d9158..bb4c8bafc1 100644
--- a/docs/sources/use/port_redirection.md
+++ b/docs/sources/use/port_redirection.md
@@ -74,7 +74,7 @@ port on the host machine bound to a given container port. It is useful
 when using dynamically allocated ports:
 
     # Bind to a dynamically allocated port
-    docker run -p 127.0.0.1::8080 -name dyn-bound <image> <cmd>
+    docker run -p 127.0.0.1::8080 --name dyn-bound <image> <cmd>
 
     # Lookup the actual port
     docker port dyn-bound 8080