diff --git a/core/renderers/measurables/bottom_row.js b/core/renderers/measurables/bottom_row.js
index 37e80f6f2..1c4fe02ac 100644
--- a/core/renderers/measurables/bottom_row.js
+++ b/core/renderers/measurables/bottom_row.js
@@ -26,7 +26,7 @@ const object = goog.require('Blockly.utils.object');
 
 /**
  * An object containing information about what elements are in the bottom row of
- * a block as well as spacing information for the top row.
+ * a block as well as spacing information for the bottom row.
  * Elements in a bottom row can consist of corners, spacers and next
  * connections.
  * @param {!ConstantProvider} constants The rendering