diff --git a/src/Core/Utilities/EncryptedValueAttribute.cs b/src/Core/Utilities/EncryptedValueAttribute.cs
index 558b83489a..e58dca4bd6 100644
--- a/src/Core/Utilities/EncryptedValueAttribute.cs
+++ b/src/Core/Utilities/EncryptedValueAttribute.cs
@@ -4,7 +4,7 @@ using System.ComponentModel.DataAnnotations;
 namespace Bit.Core.Utilities
 {
     /// <summary>
-    /// Validates a string that is in encrypted form: "b64iv=|b64ct="
+    /// Validates a string that is in encrypted form: "head.b64iv=|b64ct=|b64mac="
     /// </summary>
     public class EncryptedStringAttribute : ValidationAttribute
     {