diff --git a/lib/ash/expr/expr.ex b/lib/ash/expr/expr.ex
index ffedaabaa..e79f03638 100644
--- a/lib/ash/expr/expr.ex
+++ b/lib/ash/expr/expr.ex
@@ -55,6 +55,7 @@ defmodule Ash.Expr do
              is_struct(value, Ash.Query.Exists) or
              is_struct(value, Ash.Query.Parent) or
              is_struct(value, Ash.Query.UpsertConflict) or
+             is_struct(value, Ash.CustomExpression) or
              (is_struct(value) and is_map_key(value, :__predicate__?)) do
     true
   end
@@ -771,7 +772,6 @@ defmodule Ash.Expr do
     expr
   end
 
-
   def do_expr(
         {:&, _, _} = expr,
         _
diff --git a/lib/ash/query/query.ex b/lib/ash/query/query.ex
index aa742ad3b..ab02b048f 100644
--- a/lib/ash/query/query.ex
+++ b/lib/ash/query/query.ex
@@ -2674,6 +2674,7 @@ defmodule Ash.Query do
 
       case filter do
         {:ok, filter} ->
+
           case Ash.Filter.hydrate_refs(
                  filter,
                  %{