diff --git a/sao/src/view/form.js b/sao/src/view/form.js
index f1ddccb11c..fe73be8d84 100644
--- a/sao/src/view/form.js
+++ b/sao/src/view/form.js
@@ -2961,7 +2961,7 @@ function eval_pyson(value){
         _update_completion: function(text) {
             var record = this.record;
             if (!record) {
-                return;
+                return jQuery.when();
             }
             var field = this.field;
             var value = field.get(record);
@@ -3844,7 +3844,7 @@ function eval_pyson(value){
         },
         _update_completion: function(text) {
             if (!this.record) {
-                return;
+                return jQuery.when();
             }
             var model = this.attributes.relation;
             var domain = this.field.get_domain(this.record);
@@ -4230,7 +4230,7 @@ function eval_pyson(value){
         },
         _update_completion: function(text) {
             if (!this.record) {
-                return;
+                return jQuery.when();
             }
             var model = this.attributes.relation;
             var domain = this.field.get_domain(this.record);
@@ -5196,10 +5196,10 @@ function eval_pyson(value){
         },
         _update_completion: function(text) {
             if (this.wid_text.prop('disabled')) {
-                return;
+                return jQuery.when();
             }
             if (!this.record) {
-                return;
+                return jQuery.when();
             }
             return Sao.common.update_completion(
                 this.wid_text, this.record, this.field, this.schema_model);