diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c
index 90d6e8105..f5a944fa2 100644
--- a/src/truetype/ttdriver.c
+++ b/src/truetype/ttdriver.c
@@ -456,15 +456,6 @@
     FT_Error      error;
 
 
-    if ( !slot )
-      return FT_THROW( Invalid_Slot_Handle );
-
-    if ( !size )
-      return FT_THROW( Invalid_Size_Handle );
-
-    if ( !face )
-      return FT_THROW( Invalid_Face_Handle );
-
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
     if ( glyph_index >= (FT_UInt)face->num_glyphs &&
          !face->internal->incremental_interface   )