diff --git a/editor/svgcanvas.js b/editor/svgcanvas.js
index d52b50fc..2ed645d8 100644
--- a/editor/svgcanvas.js
+++ b/editor/svgcanvas.js
@@ -2205,13 +2205,14 @@ var mouseUp = function (evt) {
 		// if this element is in a group, go up until we reach the top-level group
 		// just below the layer groups
 		// TODO: once we implement links, we also would have to check for <a> elements
-		while (t.parentNode.parentNode.tagName === 'g') {
+		while (t && t.parentNode && t.parentNode.parentNode && t.parentNode.parentNode.tagName === 'g') {
 			t = t.parentNode;
 		}
 		// if we are not in the middle of creating a path, and we've clicked on some shape,
 		// then go to Select mode.
 		// WebKit returns <div> when the canvas is clicked, Firefox/Opera return <svg>
 		if ((currentMode !== 'path' || !drawnPath) &&
+			t && t.parentNode &&
 			t.parentNode.id !== 'selectorParentGroup' &&
 			t.id !== 'svgcanvas' && t.id !== 'svgroot'
 		) {