diff --git a/src/webgldrawer.js b/src/webgldrawer.js
index 03b43ea4..19de92cc 100644
--- a/src/webgldrawer.js
+++ b/src/webgldrawer.js
@@ -891,7 +891,7 @@
                 let position;
 
                 if (!tiledImage.isTainted()) {
-                    if((data instanceof CanvasRenderingContext2D) && $.isCanvasTainted(data)){
+                    if((data instanceof CanvasRenderingContext2D) && $.isCanvasTainted(data.canvas)){
                         tiledImage.setTainted(true);
                         $.console.warn('WebGL cannot be used to draw this TiledImage because it has tainted data. Does crossOriginPolicy need to be set?');
                         this._raiseDrawerErrorEvent(tiledImage, 'Tainted data cannot be used by the WebGLDrawer. Falling back to CanvasDrawer for this TiledImage.');