diff --git a/Sources/VergeNormalization/NormalizedStorageType.swift b/Sources/VergeNormalization/NormalizedStorageType.swift
index a0cc080887..be5cfd32e3 100644
--- a/Sources/VergeNormalization/NormalizedStorageType.swift
+++ b/Sources/VergeNormalization/NormalizedStorageType.swift
@@ -1,6 +1,9 @@
 
 public protocol NormalizedStorageType: Equatable {
 
+  /**
+   Performs any additional operations for updating.
+   */
   func finalizeTransaction(transaction: inout ModifyingTransaction<Self>)
 
   static func compare(lhs: Self, rhs: Self) -> Bool