diff --git a/README.md b/README.md
index 389ace4..827b53c 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ chmod +x ./zfs-inplace-rebalancing.sh
 
 | Name      | Description | Default |
 |-----------|-------------|---------|
-| -checksum | Whether to compare the copy using an **MD5** checksum | `true` |
+| -checksum | Whether to compare attributes and content of the copied file using an **MD5** checksum. Technically this is a redundent check and consumes a lot of resources, so think twice. | `true` |
 | -passes   | The maximum number of rebalance passes per file. Setting this to infinity by using a value `<= 0` might improve performance when rebalancing a lot of small files. | `1` |
 
 ### Example