diff --git a/gtk/parameters.ui b/gtk/parameters.ui
index ce9373dae..158b86d20 100644
--- a/gtk/parameters.ui
+++ b/gtk/parameters.ui
@@ -314,7 +314,6 @@
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
                                     <property name="model">model8</property>
-                                    <signal name="changed" handler="linphone_gtk_proto_changed" swapped="no"/>
                                     <child>
                                       <object class="GtkCellRendererText" id="renderer1"/>
                                       <attributes>
@@ -332,7 +331,6 @@
                                     <property name="primary_icon_activatable">False</property>
                                     <property name="secondary_icon_activatable">False</property>
                                     <property name="adjustment">adjustment7</property>
-                                    <signal name="value-changed" handler="linphone_gtk_update_my_port" swapped="no"/>
                                   </object>
                                   <packing>
                                     <property name="left_attach">1</property>
diff --git a/gtk/propertybox.c b/gtk/propertybox.c
index 78a8ca423..c7c3d7cd7 100644
--- a/gtk/propertybox.c
+++ b/gtk/propertybox.c
@@ -916,5 +916,7 @@ void linphone_gtk_show_parameters(void){
 				ui_advanced);
 	linphone_gtk_ui_level_adapt(pb);
 
+	g_signal_connect(G_OBJECT(linphone_gtk_get_widget(pb,"proto_port")),"value-changed",(GCallback)linphone_gtk_update_my_port,NULL);
+	g_signal_connect(G_OBJECT(linphone_gtk_get_widget(pb,"proto_combo")),"changed",(GCallback)linphone_gtk_proto_changed,NULL);
 	gtk_widget_show(pb);
 }