diff --git a/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/Model/PassCodeHolder.swift b/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/Model/PassCodeHolder.swift
index 3fe8f0e..4a118a5 100644
--- a/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/Model/PassCodeHolder.swift
+++ b/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/Model/PassCodeHolder.swift
@@ -152,7 +152,7 @@ public class PassCodeHolderChange: PassCodeHolderProtocol {
         switch (oldPassCode, newFirstPassCode, newSecondPassCode) {
         case (let oldPassCode?, nil, nil):
             return oldPassCode
-        case (_, let newFirstPassCode?, nil):
+        case (_, _?, nil):
             return nil
         case (_, let newFirstPassCode?, let newSecondPassCode?) where newFirstPassCode == newSecondPassCode:
             return newFirstPassCode
@@ -187,5 +187,5 @@ public class PassCodeHolderChange: PassCodeHolderProtocol {
             newSecondPassCode = nil
         }
     }
-    
+
 }
diff --git a/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/View/BasePassCodeViewController.swift b/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/View/BasePassCodeViewController.swift
index 6ffdbc7..c6ec92e 100644
--- a/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/View/BasePassCodeViewController.swift
+++ b/LeadKitAdditions/LeadKitAdditions/Controllers/PassCode/View/BasePassCodeViewController.swift
@@ -244,12 +244,12 @@ extension BasePassCodeViewController: ConfigurableController {
 
 extension BasePassCodeViewController: UITextFieldDelegate {
 
-    func textField(_ textField: UITextField,
-                   shouldChangeCharactersIn range: NSRange,
-                   replacementString string: String) -> Bool {
+    public func textField(_ textField: UITextField,
+                          shouldChangeCharactersIn range: NSRange,
+                          replacementString string: String) -> Bool {
 
         let invalid = CharacterSet(charactersIn: "0123456789").inverted
         return string.rangeOfCharacter(from: invalid, options: [], range: string.startIndex..<string.endIndex) == nil
     }
-    
+
 }