diff --git a/VDS/Extensions/UIApplication.swift b/VDS/Extensions/UIApplication.swift
index 52cf69d6..956bd3d5 100644
--- a/VDS/Extensions/UIApplication.swift
+++ b/VDS/Extensions/UIApplication.swift
@@ -10,6 +10,9 @@ import UIKit
 
 extension UIApplication {
     
+    /// Helper method to find the top most viewcontroller in the app
+    /// - Parameter controller: UIViewController to test against
+    /// - Returns: Found top most UIViewController 
     public class func topViewController(controller: UIViewController? = UIApplication.shared.windows.first?.rootViewController) -> UIViewController? {
         
         if let nav = controller as? UINavigationController {