diff --git a/CMakeLists.txt b/CMakeLists.txt
index c9befb421..e10895b0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -353,6 +353,7 @@ set(BASE_SRCS
   src/type1/type1.c
   src/type42/type42.c
   src/winfonts/winfnt.c
+  src/sdf/sdf.c
 )
 
 if (UNIX)
diff --git a/include/freetype/config/ftmodule.h b/include/freetype/config/ftmodule.h
index b5c4b1ee5..2b4600940 100644
--- a/include/freetype/config/ftmodule.h
+++ b/include/freetype/config/ftmodule.h
@@ -26,5 +26,7 @@ FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
 FT_USE_MODULE( FT_Module_Class, sfnt_module_class )
 FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class )
 FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
+FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class )
+FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class )
 
 /* EOF */