diff --git a/ext/js/dom/text-source-element.js b/ext/js/dom/text-source-element.js
index 1a842310..264a913e 100644
--- a/ext/js/dom/text-source-element.js
+++ b/ext/js/dom/text-source-element.js
@@ -95,7 +95,7 @@ class TextSourceElement {
     }
 
     getRects() {
-        return this.getClientRects();
+        return this._element.getClientRects();
     }
 
     getWritingMode() {