diff --git a/lib/ash/resource/validation/negate.ex b/lib/ash/resource/validation/negate.ex
index aeae9f6e..da81f120 100644
--- a/lib/ash/resource/validation/negate.ex
+++ b/lib/ash/resource/validation/negate.ex
@@ -29,7 +29,7 @@ defmodule Ash.Resource.Validation.Negate do
             module -> module
           end
 
-        {:error, "#{module} must implement `describe/1` function to be used in #{__MODULE__}"}
+        raise ArgumentError, "#{module} must implement `describe/1` function to be used in #{__MODULE__}"
 
       error ->
         error