diff --git a/ios/Nativebrik/Classes/user.swift b/ios/Nativebrik/Classes/user.swift
index 6e77307..59ae0b6 100644
--- a/ios/Nativebrik/Classes/user.swift
+++ b/ios/Nativebrik/Classes/user.swift
@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import UIKit
 
 typealias ExperimentHistoryRecord = TimeInterval