diff --git a/experiments/2025-03-18/src/geometry/surface.rs b/experiments/2025-03-18/src/geometry/surface.rs
index e7c288c1b..652b67982 100644
--- a/experiments/2025-03-18/src/geometry/surface.rs
+++ b/experiments/2025-03-18/src/geometry/surface.rs
@@ -1,7 +1,7 @@
 use fj_math::{Point, Vector};
 use geo::Polygon;
 
-use crate::math::Plane;
+use crate::geometry::Plane;
 
 pub trait SurfaceGeometry {
     fn point_from_local(&self, point: Point<2>) -> Point<3>;
diff --git a/experiments/2025-03-18/src/main.rs b/experiments/2025-03-18/src/main.rs
index 900778af0..987f24bcb 100644
--- a/experiments/2025-03-18/src/main.rs
+++ b/experiments/2025-03-18/src/main.rs
@@ -3,7 +3,6 @@
 mod extra;
 mod geometry;
 mod handle;
-mod math;
 mod model;
 mod operations;
 mod topology;
diff --git a/experiments/2025-03-18/src/math/mod.rs b/experiments/2025-03-18/src/math/mod.rs
deleted file mode 100644
index 6f580e2cd..000000000
--- a/experiments/2025-03-18/src/math/mod.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub use crate::geometry::Plane;
diff --git a/experiments/2025-03-18/src/model.rs b/experiments/2025-03-18/src/model.rs
index 6c3d6e6e6..f396e0a2c 100644
--- a/experiments/2025-03-18/src/model.rs
+++ b/experiments/2025-03-18/src/model.rs
@@ -3,9 +3,8 @@ use fj_math::{Bivector, Point, Vector};
 use fj_viewer::Viewer;
 
 use crate::{
-    geometry::{Sketch, ToTriMesh},
+    geometry::{Plane, Sketch, ToTriMesh},
     handle::Handle,
-    math::Plane,
     operations::sweep::SweepExt,
     topology::surface::Surface,
 };
diff --git a/experiments/2025-03-18/src/operations/connect.rs b/experiments/2025-03-18/src/operations/connect.rs
index 27490b24d..f207aac85 100644
--- a/experiments/2025-03-18/src/operations/connect.rs
+++ b/experiments/2025-03-18/src/operations/connect.rs
@@ -1,8 +1,8 @@
 use itertools::Itertools;
 
 use crate::{
+    geometry::Plane,
     handle::Handle,
-    math::Plane,
     topology::{
         curve::Curve,
         face::{Face, HalfEdgeWithEndVertex},