diff --git a/lib/ash/action_input.ex b/lib/ash/action_input.ex
index fd874dff..fdb910f9 100644
--- a/lib/ash/action_input.ex
+++ b/lib/ash/action_input.ex
@@ -141,7 +141,7 @@ defmodule Ash.ActionInput do
       end
 
     Enum.reduce(messages, input, fn message, input ->
-      if Exception.exception?(message) do
+      if is_exception(message) do
         error =
           message
           |> Ash.Error.to_ash_error()
diff --git a/lib/ash/changeset/changeset.ex b/lib/ash/changeset/changeset.ex
index c3d117db..9a922257 100644
--- a/lib/ash/changeset/changeset.ex
+++ b/lib/ash/changeset/changeset.ex
@@ -3801,7 +3801,7 @@ defmodule Ash.Changeset do
       end
 
     Enum.reduce(messages, changeset, fn message, changeset ->
-      if Exception.exception?(message) do
+      if is_exception(message) do
         error =
           message
           |> Ash.Error.to_ash_error()