--- util/grub-gen-asciih.c.orig	2015-12-18 15:55:41.000754229 +0100
+++ util/grub-gen-asciih.c	2015-12-18 15:56:14.296668022 +0100
@@ -128,7 +128,7 @@ add_glyph (FT_UInt glyph_idx, FT_Face fa
 static void
 write_font_ascii_bitmap (FILE *file, FT_Face face)
 {
-  struct grub_glyph_info glyph;
+  struct grub_glyph_info glyph = {};
   int char_code;
 
   fprintf (file, "/* THIS CHUNK OF BYTES IS AUTOMATICALLY GENERATED */\n");