diff --git a/dither4.s b/dither4.s
index cdb2371..864748e 100644
--- a/dither4.s
+++ b/dither4.s
@@ -66,6 +66,7 @@ audio_high_byte:
         byteseq $3
         byteseq $4
         byteseq $5
+        byteseq $6
         byteseq $7
         byteseq $8
         byteseq $9