diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 1bb43a0e4b8..1f35c0e1dc3 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -250,8 +250,11 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
             return null;
         }
 
-        var method = call[1], args = [];
-        var context_index = null;
+        var method = call[1], args = [], context_index = null;
+        if (!_.str.trim(call[2])) {
+            return {method: method, args: args, context_index: context_index}
+        }
+
         var argument_replacement = {
             'False': function () {return false;},
             'True': function () {return true;},
diff --git a/addons/web/static/test/onchange.js b/addons/web/static/test/onchange.js
index 07eb6c1bc2c..c606915f31a 100644
--- a/addons/web/static/test/onchange.js
+++ b/addons/web/static/test/onchange.js
@@ -22,12 +22,12 @@ $(document).ready(function () {
             window.openerp.web.form(openerp);
         }
     });
-//    test('Parse args-less onchange', function () {
-//        var f = new openerp.web.FormView(null, {});
-//        var result = f.parse_on_change('on_change_foo()', {});
-//        equal(result.method, 'on_change_foo');
-//        deepEqual(result.args, []);
-//    });
+    test('Parse args-less onchange', function () {
+        var f = new openerp.web.FormView(null, {});
+        var result = f.parse_on_change('on_change_foo()', {});
+        equal(result.method, 'on_change_foo');
+        deepEqual(result.args, []);
+    });
     test('Parse 1-arg onchange', function () {
         var f = make_form({foo:  3});
         var result = f.parse_on_change('on_change_foo(foo)', {});