diff --git a/docs/design/database.md b/docs/design/database.md
index db5da983f51e..485c183e8cbf 100644
--- a/docs/design/database.md
+++ b/docs/design/database.md
@@ -113,7 +113,7 @@ HashedStorages {
     U256 StorageValue
 }
 AccountsTrie {
-    Nibbles "PK"
+    StoredNibbles Nibbles "PK"
     BranchNodeCompact Node
 }
 StoragesTrie {