diff --git a/README.org b/README.org
index 269bd2b..cf1fe3c 100644
--- a/README.org
+++ b/README.org
@@ -22,6 +22,7 @@ hash of the file contents.
       -s, --source <value>  Source directory to sync to S3
       -b, --bucket <value>  S3 bucket name
       -p, --prefix <value>  Prefix within the S3 Bucket
+      -P, --parallel <value> Maximum parallel upload/copy operations
       -i, --include <value> Include matching paths
       -x, --exclude <value> Exclude matching paths
       -d, --debug           Enable debug logging