diff --git a/APIHandler.cs b/APIHandler.cs
index bc68f22..464a742 100644
--- a/APIHandler.cs
+++ b/APIHandler.cs
@@ -199,7 +199,7 @@ public static partial class APIHandler
                         CommandBuilder.Append("UPDATE agents SET");
                         foreach (JsonProperty Prop in UpdateFields.EnumerateObject())
                         {
-                            Comm.Parameters.AddWithValue($"@p{Prop.Name}", Prop.Value.ValueKind == JsonValueKind.String ? Prop.Value.GetString() == "DBNull" ? DBNull.Value : Prop.Value.GetString() : Prop.Value.GetInt16());
+                            Comm.Parameters.AddWithValue($"@p{Prop.Name}", Prop.Value.ValueKind == JsonValueKind.Null ? DBNull.Value : Prop.Value.ValueKind == JsonValueKind.String ?  Prop.Value.GetString() : Prop.Value.GetInt16());
                             CommandBuilder.Append($" [{Prop.Name}] = @p{Prop.Name},");
                         }
                         Comm.Parameters.AddWithValue("@pagentid", AgentID);