diff --git a/source/tutorial/modify-chunk-size-in-sharded-cluster.txt b/source/tutorial/modify-chunk-size-in-sharded-cluster.txt
index e8889fb6505..2c5ac25793e 100644
--- a/source/tutorial/modify-chunk-size-in-sharded-cluster.txt
+++ b/source/tutorial/modify-chunk-size-in-sharded-cluster.txt
@@ -10,7 +10,8 @@ default chunk size of 64 megabytes. This default chunk size works well
 for most deployments; however, if you notice that automatic migrations
 have more I/O than your hardware can handle, you may want to reduce the
 chunk size. For automatic splits and migrations, a small chunk size
-leads to more rapid and frequent migrations.
+leads to more rapid and frequent migrations. The allowed range of the
+chunk size is between 1 and 1024 megabytes.
 
 To modify the chunk size, use the following procedure:
 
@@ -52,3 +53,5 @@ Modifying the chunk size has several limitations:
 
 - If you increase the chunk size, existing chunks grow only through
   insertion or updates until they reach the new size.
+  
+- The allowed range of the chunk size is between 1 and 1024 megabytes.