diff --git a/Charts/Classes/Components/ChartXAxis.swift b/Charts/Classes/Components/ChartXAxis.swift
index ac20743f64..29e00118c9 100644
--- a/Charts/Classes/Components/ChartXAxis.swift
+++ b/Charts/Classes/Components/ChartXAxis.swift
@@ -13,6 +13,7 @@
 //
 
 import Foundation
+import UIKit
 
 public class ChartXAxis: ChartAxisBase
 {