diff --git a/chrome/content/zotero/xpcom/data/tags.js b/chrome/content/zotero/xpcom/data/tags.js
index e78f4ff344..b0f1ed032b 100644
--- a/chrome/content/zotero/xpcom/data/tags.js
+++ b/chrome/content/zotero/xpcom/data/tags.js
@@ -744,9 +744,8 @@ Zotero.Tags = new function() {
 				.getService(Components.interfaces["nsIChromeRegistry"])
 				.convertChromeURL(uri);
 			
-			let file = uri.QueryInterface(Components.interfaces.nsIFileURL).file;
 			var img = new win.Image();
-			img.src = Zotero.File.generateDataURI(file, "image/png");
+			img.src = uri.spec;
 			
 			// Mark that we've started loading
 			var deferred = Q.defer();