diff --git a/gio/gnextstepsettingsbackend.m b/gio/gnextstepsettingsbackend.m
index 9e1862b83..5ecaec859 100644
--- a/gio/gnextstepsettingsbackend.m
+++ b/gio/gnextstepsettingsbackend.m
@@ -23,7 +23,7 @@
 
 #include "gsettingsbackendinternal.h"
 #include "gsimplepermission.h"
-#include "giomodule.h"
+#include "giomodule-priv.h"
 
 #import <Foundation/Foundation.h>
 
@@ -46,6 +46,7 @@ struct _GNextstepSettingsBackend
 G_DEFINE_TYPE_WITH_CODE (GNextstepSettingsBackend,
                          g_nextstep_settings_backend,
                          G_TYPE_SETTINGS_BACKEND,
+                         _g_io_modules_ensure_extension_points_registered ();
                          g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
                                                          g_define_type_id, "nextstep", 90));
 
diff --git a/gio/gnullsettingsbackend.c b/gio/gnullsettingsbackend.c
index 9aaacd86e..cf12c1614 100644
--- a/gio/gnullsettingsbackend.c
+++ b/gio/gnullsettingsbackend.c
@@ -22,7 +22,7 @@
 #include "config.h"
 
 #include "gsettingsbackendinternal.h"
-#include "giomodule.h"
+#include "giomodule-priv.h"
 #include "gsimplepermission.h"
 
 
@@ -38,6 +38,7 @@ typedef GSettingsBackend      GNullSettingsBackend;
 G_DEFINE_TYPE_WITH_CODE (GNullSettingsBackend,
                          g_null_settings_backend,
                          G_TYPE_SETTINGS_BACKEND,
+                         _g_io_modules_ensure_extension_points_registered ();
                          g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
                                                          g_define_type_id, "null", 10))
 
diff --git a/gio/gregistrysettingsbackend.c b/gio/gregistrysettingsbackend.c
index aecccd3f7..625039877 100644
--- a/gio/gregistrysettingsbackend.c
+++ b/gio/gregistrysettingsbackend.c
@@ -93,7 +93,7 @@
 
 #include "gregistrysettingsbackend.h"
 #include "gsettingsbackend.h"
-#include "giomodule.h"
+#include "giomodule-priv.h"
 
 #include <windows.h>
 
@@ -179,6 +179,7 @@ typedef struct {
 G_DEFINE_TYPE_WITH_CODE (GRegistryBackend,
                          g_registry_backend,
                          G_TYPE_SETTINGS_BACKEND,
+                         _g_io_modules_ensure_extension_points_registered ();
                          g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
                                                          g_define_type_id, "registry", 90))