diff --git a/web_polymorphic/__init__.py b/web_many2one_polymorphic/__init__.py
similarity index 100%
rename from web_polymorphic/__init__.py
rename to web_many2one_polymorphic/__init__.py
diff --git a/web_polymorphic/__openerp__.py b/web_many2one_polymorphic/__openerp__.py
similarity index 100%
rename from web_polymorphic/__openerp__.py
rename to web_many2one_polymorphic/__openerp__.py
diff --git a/web_polymorphic/static/src/js/view_form.js b/web_many2one_polymorphic/static/src/js/view_form.js
similarity index 78%
rename from web_polymorphic/static/src/js/view_form.js
rename to web_many2one_polymorphic/static/src/js/view_form.js
index bb51738d..908eb9a6 100755
--- a/web_polymorphic/static/src/js/view_form.js
+++ b/web_many2one_polymorphic/static/src/js/view_form.js
@@ -41,6 +41,23 @@ openerp.web_polymorphic = function (instance) {
                 self.field.relation = self.field_manager.get_field_value(self.polymorphic);              
             });
             this._super();
+            this.set_polymorphic_event();
+            this.set({
+                readonly: true
+            });
+
+        },
+        set_polymorphic_event: function() {
+            self = this;
+            this.field_manager.fields[this.polymorphic].$el.on(
+                'change', function(){
+                    field_value = self.field_manager.get_field_value(self.polymorphic);
+                    if(field_value !== false)
+                        self.set("effective_readonly", false);
+                    else
+                        self.set("effective_readonly", true);
+                }
+            );
         }
     });
     instance.web.form.widgets.add('polymorphic', 'instance.web.form.FieldPolymorphic')