diff --git a/editor/extensions/ext-eyedropper.js b/editor/extensions/ext-eyedropper.js
index 257650d7..2dd451ba 100644
--- a/editor/extensions/ext-eyedropper.js
+++ b/editor/extensions/ext-eyedropper.js
@@ -7,12 +7,18 @@
  *
  */
 
+// Dependencies:
+// 1) jQuery
+// 2) history.js
+// 3) svg_editor.js
+// 4) svgcanvas.js
+
 svgEditor.addExtension("eyedropper", function(S) {
 		var svgcontent = S.svgcontent,
 			svgns = "http://www.w3.org/2000/svg",
 			svgdoc = S.svgroot.parentNode.ownerDocument,
-			ChangeElementCommand = svgCanvas.getPrivateMethods().ChangeElementCommand,
-			addToHistory = svgCanvas.getPrivateMethods().addCommandToHistory,
+			ChangeElementCommand = svgedit.history.ChangeElementCommand,
+			addToHistory = function(cmd) { canvas.undoMgr.addCommandToHistory(cmd); },
 			currentStyle = {fillPaint: "red", fillOpacity: 1.0,
 							strokePaint: "black", strokeOpacity: 1.0, 
 							strokeWidth: 5, strokeDashArray: null,
diff --git a/editor/svgcanvas.js b/editor/svgcanvas.js
index 7d5e28ac..01c279b8 100644
--- a/editor/svgcanvas.js
+++ b/editor/svgcanvas.js
@@ -6404,7 +6404,7 @@ var uniquifyElems = this.uniquifyElems = function(g) {
 				var attrnode = n.getAttributeNode(attr);
 				if (attrnode) {
 					// the incoming file has been sanitized, so we should be able to safely just strip off the leading #
-					var url = getUrlFromAttr(attrnode.value),
+					var url = svgedit.utilities.getUrlFromAttr(attrnode.value),
 						refid = url ? url.substr(1) : null;
 					if (refid) {
 						if (!(refid in ids)) {
@@ -6458,7 +6458,7 @@ var uniquifyElems = this.uniquifyElems = function(g) {
 			var k = hreffers.length;
 			while (k--) {
 				var hreffer = hreffers[k];
-				setHref(hreffer, "#"+newid);
+				svgedit.utilities.setHref(hreffer, "#"+newid);
 			}
 		}
 	}