diff --git a/web/base_viewer.js b/web/base_viewer.js
index a968b981c..3bd723384 100644
--- a/web/base_viewer.js
+++ b/web/base_viewer.js
@@ -145,7 +145,6 @@ class BaseViewer {
     this.removePageBorders = options.removePageBorders || false;
     this.textLayerMode = Number.isInteger(options.textLayerMode) ?
       options.textLayerMode : TextLayerMode.ENABLE;
-    this.enhanceTextSelection = options.enhanceTextSelection || false;
     this.imageResourcesPath = options.imageResourcesPath || '';
     this.renderInteractiveForms = options.renderInteractiveForms || false;
     this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;