Index: gtksourceview/gtksourcetypes-private.h
===================================================================
--- gtksourceview/gtksourcetypes-private.h.orig	2017-05-14 07:35:59.410094693 +0000
+++ gtksourceview/gtksourcetypes-private.h	2017-05-14 07:36:00.524769641 +0000
@@ -27,7 +27,6 @@
 G_BEGIN_DECLS
 
 typedef struct _GtkSourceBufferInputStream	GtkSourceBufferInputStream;
-typedef struct _GtkSourceBufferInternal		GtkSourceBufferInternal;
 typedef struct _GtkSourceBufferOutputStream	GtkSourceBufferOutputStream;
 typedef struct _GtkSourceCompletionContainer	GtkSourceCompletionContainer;
 typedef struct _GtkSourceCompletionModel	GtkSourceCompletionModel;
Index: gtksourceview/gtksourcetypes.h
===================================================================
--- gtksourceview/gtksourcetypes.h.orig	2017-05-14 07:35:59.413161416 +0000
+++ gtksourceview/gtksourcetypes.h	2017-05-14 07:36:00.530754684 +0000
@@ -60,7 +60,6 @@
 typedef struct _GtkSourceStyle			GtkSourceStyle;
 typedef struct _GtkSourceStyleScheme		GtkSourceStyleScheme;
 typedef struct _GtkSourceStyleSchemeManager	GtkSourceStyleSchemeManager;
-typedef struct _GtkSourceTag			GtkSourceTag;
 typedef struct _GtkSourceUndoManager		GtkSourceUndoManager;
 typedef struct _GtkSourceView			GtkSourceView;
 
