diff --git a/muk_web_utils/__manifest__.py b/muk_web_utils/__manifest__.py
index 64e25d7..2262bab 100644
--- a/muk_web_utils/__manifest__.py
+++ b/muk_web_utils/__manifest__.py
@@ -20,7 +20,7 @@
 { 
     "name": "MuK Web Utils",
     "summary": """Utility Features""",
-    "version": "12.0.2.8.6",
+    "version": "12.0.2.8.7",
     "category": "Extra Tools",
     "license": "AGPL-3",
     "author": "MuK IT",
diff --git a/muk_web_utils/static/src/js/core/async.js b/muk_web_utils/static/src/js/core/async.js
index 0c72a18..779ec86 100644
--- a/muk_web_utils/static/src/js/core/async.js
+++ b/muk_web_utils/static/src/js/core/async.js
@@ -27,14 +27,14 @@ var QWeb = core.qweb;
 
 var syncLoop = function(items, func, callback) {
 	items.reduce(function(promise, item) {
-	    return promise.then(func);
+	    return promise.then(func.bind(this, item));
 	}, $.Deferred().resolve()).then(callback);
 };
 
 var syncProgress = function(items, func, callback, update) {
 	var progress = 0;
 	items.reduce(function(promise, item) {
-	    return promise.then(function() {
+	    return promise.done(function() {
 	    	update(++progress / items.length);
 	    	return func(item);
 	    });