diff --git a/Sources/Units/Units.swift b/Sources/Units/Units.swift
index 406ab32..4e705cd 100644
--- a/Sources/Units/Units.swift
+++ b/Sources/Units/Units.swift
@@ -206,7 +206,7 @@ public enum Unit: String, CaseIterable, CustomStringConvertible, Codable,
 // but the internal `value` will be stored as a `Double`.
 public struct UnitValue<ValueType: ConvertibleToDouble>:
 	CustomStringConvertible, Equatable,
-	Comparable
+	Comparable, Codable
 {
 	// Store the value internally as a Double for consistent calculations
 	public let value: Double