diff --git a/Sources/PackageSigning/SigningEntity/SigningEntity.swift b/Sources/PackageSigning/SigningEntity/SigningEntity.swift
index a7324550405..19ac9b565c1 100644
--- a/Sources/PackageSigning/SigningEntity/SigningEntity.swift
+++ b/Sources/PackageSigning/SigningEntity/SigningEntity.swift
@@ -76,7 +76,7 @@ public enum SigningEntity: Hashable, Codable, CustomStringConvertible, Sendable
 
 // MARK: - SigningEntity types that SwiftPM recognizes
 
-public enum SigningEntityType: String, Hashable, Codable {
+public enum SigningEntityType: String, Hashable, Codable, Sendable {
     case adp // Apple Developer Program
 }