diff --git a/ChartsDemo/Swift/Demos/LineChart1ViewController.swift b/ChartsDemo/Swift/Demos/LineChart1ViewController.swift
index 6f34b8b763..482190aa76 100644
--- a/ChartsDemo/Swift/Demos/LineChart1ViewController.swift
+++ b/ChartsDemo/Swift/Demos/LineChart1ViewController.swift
@@ -99,7 +99,7 @@ class LineChart1ViewController: DemoBaseViewController {
     }
 
     override func updateChartData() {
-        if self.shouldHideData {
+        guard !self.shouldHideData else {
             chartView.data = nil
             return
         }