diff --git a/PasscodeLockDemo/PasscodeLockConfiguration.swift b/PasscodeLockDemo/PasscodeLockConfiguration.swift
index 5a176bd7..ed27f51b 100644
--- a/PasscodeLockDemo/PasscodeLockConfiguration.swift
+++ b/PasscodeLockDemo/PasscodeLockConfiguration.swift
@@ -15,6 +15,7 @@ struct PasscodeLockConfiguration: PasscodeLockConfigurationType {
     let passcodeLength = 4
     var isTouchIDAllowed = true
     let shouldRequestTouchIDImmediately = true
+    var touchIdReason: String? = "Authenticate using Touch ID."
     let maximumInccorectPasscodeAttempts = -1
     
     init(repository: PasscodeRepositoryType) {