diff --git a/sao/src/sao.js b/sao/src/sao.js
index aaf6c38267..0eef4845b3 100644
--- a/sao/src/sao.js
+++ b/sao/src/sao.js
@@ -716,11 +716,14 @@ var Sao = {};
 
     Sao.main_menu_row_activate = function() {
         var screen = Sao.main_menu_screen;
-        // ids is not defined to prevent to add suffix
-        return Sao.Action.exec_keyword('tree_open', {
-            'model': screen.model_name,
-            'id': screen.get_id(),
-        }, null, false);
+        var id = screen.get_id();
+        if (id) {
+            // ids is not defined to prevent to add suffix
+            Sao.Action.exec_keyword('tree_open', {
+                'model': screen.model_name,
+                'id': screen.get_id(),
+            }, null, false);
+        }
     };
 
     Sao.menu = function(preferences) {
diff --git a/sao/src/screen.js b/sao/src/screen.js
index b1e3f49cd8..96f8e11abd 100644
--- a/sao/src/screen.js
+++ b/sao/src/screen.js
@@ -1444,11 +1444,14 @@
         default_row_activate: function() {
             if ((this.current_view.view_type == 'tree') &&
                     (this.current_view.attributes.keyword_open == 1)) {
-                Sao.Action.exec_keyword('tree_open', {
-                    'model': this.model_name,
-                    'id': this.get_id(),
-                    'ids': [this.get_id()]
-                }, this.local_context, false);
+                var id = this.get_id();
+                if (id) {
+                    Sao.Action.exec_keyword('tree_open', {
+                        'model': this.model_name,
+                        'id': this.get_id(),
+                        'ids': [this.get_id()]
+                    }, this.local_context, false);
+                }
             } else {
                 if (!this.modified()) {
                     this.switch_view('form');