diff --git a/Sources/BuildTool/BuildTool.swift b/Sources/BuildTool/BuildTool.swift
index 26ed0bf3..931a3a4a 100644
--- a/Sources/BuildTool/BuildTool.swift
+++ b/Sources/BuildTool/BuildTool.swift
@@ -26,7 +26,7 @@ struct DestinationPredicate {
     var deviceType: String
 }
 
-enum Platform: String {
+enum Platform: String, CaseIterable {
     case macOS
     case iOS
     case tvOS