diff --git a/modules/media/gtkffmediafileprivate.h b/modules/media/gtkffmediafileprivate.h
index c8366eff2f..6ee33be0c1 100644
--- a/modules/media/gtkffmediafileprivate.h
+++ b/modules/media/gtkffmediafileprivate.h
@@ -17,8 +17,7 @@
  * Authors: Benjamin Otte <otte@gnome.org>
  */
 
-#ifndef __GTK_FF_MEDIA_FILE_H__
-#define __GTK_FF_MEDIA_FILE_H__
+#pragma once
 
 #include <gtk/gtkmediafile.h>
 
@@ -29,5 +28,3 @@ G_BEGIN_DECLS
 G_DECLARE_FINAL_TYPE (GtkFfMediaFile, gtk_ff_media_file, GTK, FF_MEDIA_FILE, GtkMediaFile)
 
 G_END_DECLS
-
-#endif /* __GTK_FF_MEDIA_FILE_H__ */
diff --git a/modules/media/gtkgstmediafileprivate.h b/modules/media/gtkgstmediafileprivate.h
index 0229bbaaea..ae7aa55718 100644
--- a/modules/media/gtkgstmediafileprivate.h
+++ b/modules/media/gtkgstmediafileprivate.h
@@ -17,8 +17,7 @@
  * Authors: Benjamin Otte <otte@gnome.org>
  */
 
-#ifndef __GTK_GST_MEDIA_FILE_H__
-#define __GTK_GST_MEDIA_FILE_H__
+#pragma once
 
 #include <gtk/gtkmediafile.h>
 
@@ -29,5 +28,3 @@ G_BEGIN_DECLS
 G_DECLARE_FINAL_TYPE (GtkGstMediaFile, gtk_gst_media_file, GTK, GST_MEDIA_FILE, GtkMediaFile)
 
 G_END_DECLS
-
-#endif /* __GTK_GST_MEDIA_FILE_H__ */
diff --git a/modules/media/gtkgstpaintableprivate.h b/modules/media/gtkgstpaintableprivate.h
index 6691e51c0b..44d5a31e61 100644
--- a/modules/media/gtkgstpaintableprivate.h
+++ b/modules/media/gtkgstpaintableprivate.h
@@ -17,8 +17,7 @@
  * Authors: Benjamin Otte <otte@gnome.org>
  */
 
-#ifndef __GTK_GST_PAINTABLE_H__
-#define __GTK_GST_PAINTABLE_H__
+#pragma once
 
 #include <gdk/gdk.h>
 
@@ -39,5 +38,3 @@ void            gtk_gst_paintable_queue_set_texture     (GtkGstPaintable
                                                          double                  pixel_aspect_ratio);
 
 G_END_DECLS
-
-#endif /* __GTK_GST_PAINTABLE_H__ */
diff --git a/modules/media/gtkgstsinkprivate.h b/modules/media/gtkgstsinkprivate.h
index f81ac0ee2d..b52d6183f6 100644
--- a/modules/media/gtkgstsinkprivate.h
+++ b/modules/media/gtkgstsinkprivate.h
@@ -18,8 +18,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GTK_GST_SINK_PRIVATE_H__
-#define __GTK_GST_SINK_PRIVATE_H__
+#pragma once
 
 #include "gtkgstpaintableprivate.h"
 
@@ -63,5 +62,3 @@ struct _GtkGstSinkClass
 GType gtk_gst_sink_get_type (void);
 
 G_END_DECLS
-
-#endif /* __GTK_GST_SINK_PRIVATE_H__ */