diff --git a/src/Connected.Data/Update/CommandBuilder.cs b/src/Connected.Data/Update/CommandBuilder.cs
index 69ce790..d2742e4 100644
--- a/src/Connected.Data/Update/CommandBuilder.cs
+++ b/src/Connected.Data/Update/CommandBuilder.cs
@@ -47,18 +47,19 @@ internal abstract class CommandBuilder
 
 			foreach (var parameter in existing.Parameters)
 			{
-				if (parameter.Direction == ParameterDirection.Input)
+				if (ResolveProperty(parameter.Name) is PropertyInfo property)
 				{
-					if (ResolveProperty(parameter.Name) is PropertyInfo property)
+					result.AddParameter(new StorageParameter
 					{
-						result.AddParameter(new StorageParameter
+						Value = parameter.Direction switch
 						{
-							Value = GetValue(property),
-							Name = parameter.Name,
-							Type = parameter.Type,
-							Direction = parameter.Direction
-						});
-					}
+							ParameterDirection.Input => GetValue(property),
+							_ => default
+						},
+						Name = parameter.Name,
+						Type = parameter.Type,
+						Direction = parameter.Direction
+					});
 				}
 			}