diff --git a/ext/gtk/gstgtkglsink.h b/ext/gtk/gstgtkglsink.h
index 4944ce6d35..d1c65c00a8 100644
--- a/ext/gtk/gstgtkglsink.h
+++ b/ext/gtk/gstgtkglsink.h
@@ -29,7 +29,6 @@
 
 typedef struct _GstGtkGLSink GstGtkGLSink;
 typedef struct _GstGtkGLSinkClass GstGtkGLSinkClass;
-typedef struct _GstGtkGLSinkPrivate GstGtkGLSinkPrivate;
 
 #include <gtkgstglwidget.h>
 
@@ -76,8 +75,6 @@ struct _GstGtkGLSink
 
   gboolean              ignore_alpha;
   GBinding             *bind_ignore_alpha;
-
-  GstGtkGLSinkPrivate  *priv;
 };
 
 /**
diff --git a/ext/gtk/gstgtksink.h b/ext/gtk/gstgtksink.h
index ded85d78ab..f7b6ba7506 100644
--- a/ext/gtk/gstgtksink.h
+++ b/ext/gtk/gstgtksink.h
@@ -28,7 +28,6 @@
 
 typedef struct _GstGtkSink GstGtkSink;
 typedef struct _GstGtkSinkClass GstGtkSinkClass;
-typedef struct _GstGtkSinkPrivate GstGtkSinkPrivate;
 
 #include <gtkgstwidget.h>
 
@@ -66,8 +65,6 @@ struct _GstGtkSink
 
   gboolean              ignore_alpha;
   GBinding             *bind_ignore_alpha;
-
-  GstGtkSinkPrivate   *priv;
 };
 
 /**