diff --git a/doc/zstd_compression_format.md b/doc/zstd_compression_format.md
index 86d5ef263..aa86d1420 100644
--- a/doc/zstd_compression_format.md
+++ b/doc/zstd_compression_format.md
@@ -1266,7 +1266,7 @@ Resulting in following 2-bytes bitstream :
 00010000 00001101
 ```
 
-alternative representation with clearer separation of fields :
+Here is an alternative representation with the symbol codes separated by underscore:
 ```
 0001_0000 00001_1_01
 ```