diff --git a/src/lines-component.coffee b/src/lines-component.coffee
index 45a090207..be75dddc6 100644
--- a/src/lines-component.coffee
+++ b/src/lines-component.coffee
@@ -44,8 +44,9 @@ LinesComponent = React.createClass
     )
 
     {renderedRowRange, pendingChanges} = newProps
+    [renderedStartRow, renderedEndRow] = renderedRowRange
     for change in pendingChanges
-      return true unless change.end <= renderedRowRange.start or renderedRowRange.end <= change.start
+      return true unless change.end <= renderedStartRow or renderedEndRow <= change.start
 
     false