diff --git a/README.md b/README.md
index c9130da..8bcae33 100644
--- a/README.md
+++ b/README.md
@@ -182,7 +182,8 @@ The end-points are:
   /api/block/[:hash]
   /api/block/00000000a967199a2fad0877433c93df785a8d8ce062e5f9b451cd1397bdbf62
 ```
-### Block hash
+### Block index
+Get block hash by height
 ```
   /api/block-index/[:height]
   /api/block-index/0