diff --git a/chrome/content/zotero/xpcom/translation/translate.js b/chrome/content/zotero/xpcom/translation/translate.js
index 9a4e0357f2..bb29810368 100644
--- a/chrome/content/zotero/xpcom/translation/translate.js
+++ b/chrome/content/zotero/xpcom/translation/translate.js
@@ -1406,7 +1406,6 @@ Zotero.Translate.Base.prototype = {
 			Zotero.debug(string, level);
 		}
 	},
-	
 	/**
 	 * Generates a string from an exception
 	 * @param {String|Exception} error
@@ -1416,13 +1415,17 @@ Zotero.Translate.Base.prototype = {
 		if(typeof(error) == "string") {
 			errorString = "\nthrown exception => "+error;
 		} else {
+			var haveStack = false;
 			for(var i in error) {
 				if(typeof(error[i]) != "object") {
+					if(i === "stack") haveStack = true;
 					errorString += "\n"+i+' => '+error[i];
 				}
 			}
-			if(error) {
-				errorString += "\nstring => "+error.toString();
+			errorString += "\nstring => "+error.toString();
+			if(!haveStack && error.stack) {
+				// In case the stack is not enumerable
+				errorString += "\nstack => "+error.stack.toString();
 			}
 		}