diff --git a/core/renderers/common/i_path_object.js b/core/renderers/common/i_path_object.js
index 4cbd940ac..e23faa262 100644
--- a/core/renderers/common/i_path_object.js
+++ b/core/renderers/common/i_path_object.js
@@ -60,4 +60,4 @@ Blockly.blockRendering.IPathObject.prototype.setColourFromStyle;
  * Flip the SVG paths in RTL.
  * @package
  */
-Blockly.geras.PathObject.prototype.flipRTL;
+Blockly.blockRendering.IPathObject.prototype.flipRTL;