diff --git a/include/freetype/ftrender.h b/include/freetype/ftrender.h
index dc5018a1b..4e420f9db 100644
--- a/include/freetype/ftrender.h
+++ b/include/freetype/ftrender.h
@@ -147,7 +147,7 @@ FT_BEGIN_HEADER
    *     For @FT_GLYPH_FORMAT_OUTLINE renderers only.  This is a pointer to
    *     its raster's class.
    */
-  typedef struct  FT_Renderer_Class_
+  typedef const struct  FT_Renderer_Class_
   {
     FT_Module_Class            root;
 
diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h
index 71034a738..6d7eff6c9 100644
--- a/include/freetype/internal/ftobjs.h
+++ b/include/freetype/internal/ftobjs.h
@@ -1119,8 +1119,8 @@ FT_BEGIN_HEADER
    *   The struct will be allocated in the global scope (or the scope where
    *   the macro is used).
    */
-#define FT_DECLARE_RENDERER( class_ )               \
-  FT_EXPORT_VAR( const FT_Renderer_Class ) class_;
+#define FT_DECLARE_RENDERER( class_ )        \
+  FT_EXPORT_VAR( FT_Renderer_Class ) class_;
 
 #define FT_DEFINE_RENDERER(                  \
           class_,                            \
@@ -1140,7 +1140,7 @@ FT_BEGIN_HEADER
           set_mode_,                         \
           raster_class_ )                    \
   FT_CALLBACK_TABLE_DEF                      \
-  const FT_Renderer_Class  class_ =          \
+  FT_Renderer_Class  class_ =                \
   {                                          \
     FT_DEFINE_ROOT_MODULE( flags_,           \
                            size_,            \