diff --git a/gtk/gtkradioaction.c b/gtk/gtkradioaction.c
index 55b2f75040..a0c5c31aef 100644
--- a/gtk/gtkradioaction.c
+++ b/gtk/gtkradioaction.c
@@ -455,61 +455,6 @@ gtk_radio_action_set_group (GtkRadioAction *action,
     _gtk_radio_group_emit_active_changed (group);
 }
 
-/**
- * gtk_radio_action_join_group:
- * @action: the action object
- * @group_source: (allow-none): a radio action object whos group we are 
- *   joining, or %NULL to remove the radio action from its group
- *
- * Joins a radio action object to the group of another radio action object.
- *
- * Use this in language bindings instead of the gtk_radio_action_get_group() 
- * and gtk_radio_action_set_group() methods
- *
- * A common way to set up a group of radio actions is the following:
- * |[
- *   GtkRadioAction *action;
- *   GtkRadioAction *last_action;
- *  
- *   while (/* more actions to add */)
- *     {
- *        action = gtk_radio_action_new (...);
- *        
- *        gtk_radio_action_join_group (action, last_action);
- *        last_action = action;
- *     }
- * ]|
- * 
- * Since: 3.0
- */
-void
-gtk_radio_action_join_group (GtkRadioAction *action, 
-			     GtkRadioAction *group_source)
-{
-  g_return_if_fail (GTK_IS_RADIO_ACTION (action));
-  g_return_if_fail (group_source == NULL || GTK_IS_RADIO_ACTION (group_source));  
-
-  if (group_source)
-    {
-      GtkRadioGroup *group;
-      group = gtk_radio_action_get_group (group_source);
-
-      if (!group)
-        {
-          /* if we are not already part of a group we need to set up a new one
-             and then get the newly created group */
-          gtk_radio_action_set_group (group_source, NULL);
-          group = gtk_radio_action_get_group (group_source);
-        }
-
-      gtk_radio_action_set_group (action, group);
-    }
-  else
-    {
-      gtk_radio_action_set_group (action, NULL);
-    }
-}
-
 /**
  * gtk_radio_action_get_current_value:
  * @action: a #GtkRadioAction
diff --git a/gtk/gtkradioaction.h b/gtk/gtkradioaction.h
index 7ae6cdc80a..991e4d6f23 100644
--- a/gtk/gtkradioaction.h
+++ b/gtk/gtkradioaction.h
@@ -81,8 +81,6 @@ GtkRadioAction *gtk_radio_action_new               (const gchar           *name,
 GtkRadioGroup  *gtk_radio_action_get_group         (GtkRadioAction        *action);
 void            gtk_radio_action_set_group         (GtkRadioAction        *action,
                                                     GtkRadioGroup         *group);
-void            gtk_radio_action_join_group        (GtkRadioAction        *action,
-                                                    GtkRadioAction        *group_source);
 gint            gtk_radio_action_get_current_value (GtkRadioAction        *action);
 void            gtk_radio_action_set_current_value (GtkRadioAction        *action,
                                                     gint                   current_value);
diff --git a/gtk/gtkradiobutton.c b/gtk/gtkradiobutton.c
index e3240e88f4..dc749469bc 100644
--- a/gtk/gtkradiobutton.c
+++ b/gtk/gtkradiobutton.c
@@ -351,52 +351,6 @@ gtk_radio_button_set_group (GtkRadioButton *radio_button,
   g_object_unref (radio_button);
 }
 
-/**
- * gtk_radio_button_join_group:
- * @radio_button: the #GtkRadioButton object
- * @group_source: (allow-none): a radio button object whos group we are 
- *   joining, or %NULL to remove the radio button from its group
- *
- * Joins a #GtkRadioButton object to the group of another #GtkRadioButton object
- *
- * Use this in language bindings instead of the gtk_radio_button_get_group() 
- * and gtk_radio_button_set_group() methods
- *
- * A common way to set up a group of radio buttons is the following:
- * |[
- *   GtkRadioButton *radio_button;
- *   GtkRadioButton *last_button;
- *
- *   while (/* more buttons to add */)
- *     {
- *        radio_button = gtk_radio_button_new (...);
- *
- *        gtk_radio_button_join_group (radio_button, last_button);
- *        last_button = radio_button;
- *     }
- * ]|
- *
- * Since: 3.0
- */
-void
-gtk_radio_button_join_group (GtkRadioButton *radio_button, 
-			     GtkRadioButton *group_source)
-{
-  g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
-  g_return_if_fail (group_source == NULL || GTK_IS_RADIO_BUTTON (group_source));
-
-  if (group_source)
-    {
-      GtkRadioGroup *group;
-      group = gtk_radio_button_get_group (group_source);
-      gtk_radio_button_set_group (radio_button, group);
-    }
-  else
-    {
-      gtk_radio_button_set_group (radio_button, NULL);
-    }
-}
-
 /**
  * gtk_radio_button_new:
  * @group: an existing radio button group, or %NULL if you are creating a new group.
diff --git a/gtk/gtkradiobutton.h b/gtk/gtkradiobutton.h
index 256d68bcf7..c6614a3b88 100644
--- a/gtk/gtkradiobutton.h
+++ b/gtk/gtkradiobutton.h
@@ -90,8 +90,6 @@ GtkWidget*     gtk_radio_button_new_with_mnemonic_from_widget (GtkRadioButton *r
 GtkRadioGroup *gtk_radio_button_get_group                     (GtkRadioButton *radio_button);
 void           gtk_radio_button_set_group                     (GtkRadioButton *radio_button,
 							       GtkRadioGroup  *group);
-void           gtk_radio_button_join_group                    (GtkRadioButton *radio_button,
-							       GtkRadioButton *group_source);
 
 G_END_DECLS