diff --git a/crates/coremem/src/sim/mod.rs b/crates/coremem/src/sim/mod.rs
index 875f4eb..b6646b8 100644
--- a/crates/coremem/src/sim/mod.rs
+++ b/crates/coremem/src/sim/mod.rs
@@ -1800,11 +1800,6 @@ mod test {
             }
         })
     }
-    fn pml_test_uniform_over_region<R: Region, S: GenericSim>(state: &mut S, reg: R, e: Vec3<f32>, hz: f32) -> f32 {
-        pml_test_over_region(state, reg, |_idx| {
-            (e, hz)
-        })
-    }
 
     fn pml_test_at<S: GenericSim>(state: &mut S, e: Vec3<f32>, center: Index) -> f32 {
         pml_test_full_interior(state, |idx| {
@@ -2028,6 +2023,11 @@ mod test {
 
     // XXX the energies here are even worse than above.
     // just don't use our PML implementation: it's not great.
+    // fn pml_test_uniform_over_region<R: Region, S: GenericSim>(state: &mut S, reg: R, e: Vec3<f32>, hz: f32) -> f32 {
+    //     pml_test_over_region(state, reg, |_idx| {
+    //         (e, hz)
+    //     })
+    // }
     // #[test]
     // fn pml_boundary_3d_multidirectional_off_center_multisource() {
     //     for dir in vec![Vec3::unit_x(), Vec3::unit_y(), Vec3::unit_z()] {