diff --git a/docs/api/session.md b/docs/api/session.md
index aa975fddd54f..b84535aa625e 100644
--- a/docs/api/session.md
+++ b/docs/api/session.md
@@ -356,7 +356,7 @@ Returns `String` - The user agent for this session.
 * `callback` Function
   * `result` Buffer - Blob data.
 
-Returns `Blob` - The blob data associated with the `identifier`.
+Returns `Buffer` - The blob data associated with the `identifier`.
 
 #### `ses.createInterruptedDownload(options)`