diff --git a/docs/reference-guides/block-api/block-metadata.md b/docs/reference-guides/block-api/block-metadata.md
index a747ab5f76aa01..8dea562a457579 100644
--- a/docs/reference-guides/block-api/block-metadata.md
+++ b/docs/reference-guides/block-api/block-metadata.md
@@ -466,6 +466,7 @@ For example:
 
 ```php
 <?php
+// Generate variations for a Social Icon kind of block.
 
 return array(
 	array(