diff --git a/rsync.md b/rsync.md
index b5f33c0a7..00f856861 100644
--- a/rsync.md
+++ b/rsync.md
@@ -29,6 +29,7 @@ rsync -avz ./src/ /dest
 -z, --compress
 -n, --dry-run
     --partial   # allows resuming of aborted syncs
+    --bwlimit=RATE    # limit socket I/O bandwidth
 ```
 
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