diff --git a/docs/src/options.md b/docs/src/options.md
index 462afe2..4f41a8d 100644
--- a/docs/src/options.md
+++ b/docs/src/options.md
@@ -267,7 +267,7 @@ Options:
   - `int`: serialize this much lines for each pane (max is the scrollback limit)
 
 ```javascript
-pane_viewport_serialization 100
+scrollback_lines_to_serialize 100
 ```
 
 ### disable_session_metadata