diff --git a/src/Api/KeyManagement/Models/Response/PrivateKeysResponseModel.cs b/src/Api/KeyManagement/Models/Response/PrivateKeysResponseModel.cs
index 30f10a5fbe..c9b8e42144 100644
--- a/src/Api/KeyManagement/Models/Response/PrivateKeysResponseModel.cs
+++ b/src/Api/KeyManagement/Models/Response/PrivateKeysResponseModel.cs
@@ -1,4 +1,5 @@
-using Bit.Core.KeyManagement.Models.Data;
+using System.Text.Json.Serialization;
+using Bit.Core.KeyManagement.Models.Data;
 using Bit.Core.Models.Api;
 
 namespace Bit.Api.KeyManagement.Models.Response;
@@ -28,6 +29,14 @@ public class PrivateKeysResponseModel : ResponseModel
         }
     }
 
+    [JsonConstructor]
+    public PrivateKeysResponseModel(SignatureKeyPairResponseModel? signatureKeyPair, PublicKeyEncryptionKeyPairModel publicKeyEncryptionKeyPair)
+        : base("privateKeys")
+    {
+        SignatureKeyPair = signatureKeyPair;
+        PublicKeyEncryptionKeyPair = publicKeyEncryptionKeyPair ?? throw new ArgumentNullException(nameof(publicKeyEncryptionKeyPair));
+    }
+
     // Not all accounts have signature keys, but all accounts have public encryption keys.
     public SignatureKeyPairResponseModel? SignatureKeyPair { get; set; }
     public required PublicKeyEncryptionKeyPairModel PublicKeyEncryptionKeyPair { get; set; }