diff --git a/MapboxNavigationTests/Sources/Tests/NavigationViewControllerTests.swift b/MapboxNavigationTests/Sources/Tests/NavigationViewControllerTests.swift
index 6f8bcef8..b6ec64ea 100644
--- a/MapboxNavigationTests/Sources/Tests/NavigationViewControllerTests.swift
+++ b/MapboxNavigationTests/Sources/Tests/NavigationViewControllerTests.swift
@@ -268,7 +268,7 @@ class NavigationViewControllerTestable: NavigationViewController {
         fatalError("init(for:directions:dayStyle:nightStyle:routeController:locationManager:voiceController:) has not been implemented")
     }
 
-    func mapView(_ mapView: MLNMapView, didFinishLoading style: MLNStyle) {
+    override func mapView(_ mapView: MLNMapView, didFinishLoading style: MLNStyle) {
         self.styleLoadedExpectation.fulfill()
     }