diff --git a/specs/simple-serialize.md b/specs/simple-serialize.md
index 4af75ed63..82d472ea4 100644
--- a/specs/simple-serialize.md
+++ b/specs/simple-serialize.md
@@ -56,7 +56,7 @@ overhead.
 | Constant          | Value | Definition                                                                            |
 |:------------------|:-----:|:--------------------------------------------------------------------------------------|
 | `LENGTH_BYTES`    |   4   | Number of bytes used for the length added before a variable-length serialized object. |
-| `SSZ_CHUNK_SIZE`  |  128  | Number of bytes for the chuck size of the Merkle tree leaf.                           |
+| `SSZ_CHUNK_SIZE`  |  128  | Number of bytes for the chunk size of the Merkle tree leaf.                           |
 
 
 ## Overview