diff --git a/Source/Turbo Navigator/TurboNavigationHierarchyController.swift b/Source/Turbo Navigator/TurboNavigationHierarchyController.swift
index 093ddcc..cbc5afb 100644
--- a/Source/Turbo Navigator/TurboNavigationHierarchyController.swift	
+++ b/Source/Turbo Navigator/TurboNavigationHierarchyController.swift	
@@ -23,9 +23,13 @@ class TurboNavigationHierarchyController {
         }
     }
 
-    init(delegate: TurboNavigationHierarchyControllerDelegate, navigationControler: UINavigationController = UINavigationController(), modalNavigationController: UINavigationController = UINavigationController()) {
+    init(
+        delegate: TurboNavigationHierarchyControllerDelegate,
+        navigationController: UINavigationController = Turbo.config.defaultNavigationController(),
+        modalNavigationController: UINavigationController = Turbo.config.defaultNavigationController()
+    ) {
         self.delegate = delegate
-        self.navigationController = navigationControler
+        self.navigationController = navigationController
         self.modalNavigationController = modalNavigationController
     }
 
diff --git a/Source/Turbo.swift b/Source/Turbo.swift
index 62e0f4b..25398a9 100644
--- a/Source/Turbo.swift
+++ b/Source/Turbo.swift
@@ -17,6 +17,12 @@ public class TurboConfig {
         VisitableViewController(url: url)
     }
 
+    /// The navigation controller used in `TurboNavigator` for the main and modal stacks.
+    /// Must be a `UINavigationController` or subclass.
+    public var defaultNavigationController: () -> UINavigationController = {
+        UINavigationController()
+    }
+
     /// Optionally customize the web views used by each Turbo Session.
     /// Ensure you return a new instance each time.
     public var makeCustomWebView: WebViewBlock = { (configuration: WKWebViewConfiguration) in
diff --git a/Tests/Turbo Navigator/TurboNavigatorTests.swift b/Tests/Turbo Navigator/TurboNavigatorTests.swift
index 6f3e6ea..3a51a54 100644
--- a/Tests/Turbo Navigator/TurboNavigatorTests.swift	
+++ b/Tests/Turbo Navigator/TurboNavigatorTests.swift	
@@ -11,7 +11,7 @@ final class TurboNavigationHierarchyControllerTests: XCTestCase {
         modalNavigationController = TestableNavigationController()
 
         navigator = TurboNavigator(session: session, modalSession: modalSession)
-        hierarchyController = TurboNavigationHierarchyController(delegate: navigator, navigationControler: navigationController, modalNavigationController: modalNavigationController)
+        hierarchyController = TurboNavigationHierarchyController(delegate: navigator, navigationController: navigationController, modalNavigationController: modalNavigationController)
         navigator.hierarchyController = hierarchyController
 
         loadNavigationControllerInWindow()