diff --git a/gtk/linphone.h b/gtk/linphone.h
index 0ae175dd9..fd7dd074f 100644
--- a/gtk/linphone.h
+++ b/gtk/linphone.h
@@ -349,3 +349,4 @@ LINPHONE_PUBLIC void linphone_gtk_reload_video_devices(void);
 LINPHONE_PUBLIC bool_t linphone_gtk_is_friend(LinphoneCore *lc, const char *contact);
 LINPHONE_PUBLIC gboolean linphone_gtk_auto_answer_enabled(void);
 LINPHONE_PUBLIC void linphone_gtk_update_status_bar_icons(void);
+LINPHONE_PUBLIC void linphone_gtk_enable_auto_answer(GtkToggleButton *checkbox, gpointer user_data);