diff --git a/specs/simple-serialize.md b/specs/simple-serialize.md
index bc621da1a..804c66d70 100644
--- a/specs/simple-serialize.md
+++ b/specs/simple-serialize.md
@@ -1,4 +1,4 @@
-# SimpleSerialiZe (SSZ)
+# SimpleSerialize (SSZ)
 
 This is a **work in progress** describing typing, serialization and Merkleization of Ethereum 2.0 objects.