diff --git a/tests/Aetheria.Shared.Tests/RecipeRoleInputTests.cs b/tests/Aetheria.Shared.Tests/RecipeRoleInputTests.cs
index 16d8be24e..fdf387130 100644
--- a/tests/Aetheria.Shared.Tests/RecipeRoleInputTests.cs
+++ b/tests/Aetheria.Shared.Tests/RecipeRoleInputTests.cs
@@ -55,6 +55,15 @@ public sealed class RecipeRoleInputTests
         Assert.False(Recipes.IsConsumerGood(f.Cache, ironRecipe));
     }
 
+    [Fact]
+    public void ANullListElsewhereInARecipeLeavesItsRoleInputsToTheRules()
+    {
+        using var f = Smelter();
+        Assert.Empty(EconomyChecks.Check(f.Cache).Faults.Where(x => x.Invariant != EconomyChecks.LRecipe));
+        f.EditRecipe(Iron, r => r.Upkeep = null);
+        Assert.Empty(EconomyChecks.Check(f.Cache).Faults.Where(x => x.Invariant != EconomyChecks.LRecipe));
+    }
+
     [Fact]
     public void DepthReadsARoleInputAsItsShallowestFiller()
     {