[HB] Cleanup buffer
diff --git a/src/hb-buffer-private.h b/src/hb-buffer-private.h
index 6225f70..13bbe12 100644
--- a/src/hb-buffer-private.h
+++ b/src/hb-buffer-private.h
@@ -48,7 +48,7 @@
 _hb_buffer_add_output_glyphs (hb_buffer_t *buffer,
 			      unsigned int num_in,
 			      unsigned int num_out,
-			      unsigned short *glyph_data,
+			      const uint16_t *glyph_data_be,
 			      unsigned short component,
 			      unsigned short ligID);