diff --git a/MVMCoreUI/FormUIHelpers/FormFieldProtocol.swift b/MVMCoreUI/FormUIHelpers/FormFieldProtocol.swift
index 8b578fb3..8490cd69 100644
--- a/MVMCoreUI/FormUIHelpers/FormFieldProtocol.swift
+++ b/MVMCoreUI/FormUIHelpers/FormFieldProtocol.swift
@@ -37,7 +37,7 @@ public extension FormFieldProtocol {
 }
 
 public protocol FormFieldInternalValidatableProtocol: FormFieldProtocol {
-    associatedtype ValueType
+    associatedtype ValueType = AnyHashable
     var rules: [AnyRule<ValueType>]? { get set }
     var internalRules: [RuleAnyModelProtocol]? { get }
 }