diff --git a/crates/fj-core/src/operations/geometry/half_edge.rs b/crates/fj-core/src/operations/geometry/half_edge.rs
index 04989a3a3..9897abc1b 100644
--- a/crates/fj-core/src/operations/geometry/half_edge.rs
+++ b/crates/fj-core/src/operations/geometry/half_edge.rs
@@ -1,2 +1,33 @@
+use crate::{
+    geometry::SurfacePath, objects::HalfEdge, operations::insert::Insert,
+    storage::Handle, Core,
+};
+
 /// Update the geometry of a [`HalfEdge`]
-pub trait UpdateHalfEdgeGeometry {}
+pub trait UpdateHalfEdgeGeometry {
+    /// Update the path of the edge
+    #[must_use]
+    fn update_path(
+        &self,
+        update: impl FnOnce(SurfacePath) -> SurfacePath,
+        core: &mut Core,
+    ) -> Self;
+}
+
+impl UpdateHalfEdgeGeometry for Handle<HalfEdge> {
+    fn update_path(
+        &self,
+        update: impl FnOnce(SurfacePath) -> SurfacePath,
+        core: &mut Core,
+    ) -> Self {
+        let path = update(self.path());
+
+        HalfEdge::new(
+            path,
+            self.boundary(),
+            self.curve().clone(),
+            self.start_vertex().clone(),
+        )
+        .insert(core)
+    }
+}
diff --git a/crates/fj-core/src/operations/update/half_edge.rs b/crates/fj-core/src/operations/update/half_edge.rs
index c8992c629..3f41a89fb 100644
--- a/crates/fj-core/src/operations/update/half_edge.rs
+++ b/crates/fj-core/src/operations/update/half_edge.rs
@@ -1,7 +1,7 @@
 use fj_math::Point;
 
 use crate::{
-    geometry::{CurveBoundary, SurfacePath},
+    geometry::CurveBoundary,
     objects::{Curve, HalfEdge, Vertex},
     operations::{derive::DeriveFrom, insert::Insert},
     storage::Handle,
@@ -10,14 +10,6 @@ use crate::{
 
 /// Update a [`HalfEdge`]
 pub trait UpdateHalfEdge: Sized {
-    /// Update the path of the edge
-    #[must_use]
-    fn update_path(
-        &self,
-        update: impl FnOnce(SurfacePath) -> SurfacePath,
-        core: &mut Core,
-    ) -> Handle<Self>;
-
     /// Update the boundary of the edge
     #[must_use]
     fn update_boundary(
@@ -47,22 +39,6 @@ pub trait UpdateHalfEdge: Sized {
 }
 
 impl UpdateHalfEdge for HalfEdge {
-    fn update_path(
-        &self,
-        update: impl FnOnce(SurfacePath) -> SurfacePath,
-        core: &mut Core,
-    ) -> Handle<Self> {
-        let path = update(self.path());
-
-        HalfEdge::new(
-            path,
-            self.boundary(),
-            self.curve().clone(),
-            self.start_vertex().clone(),
-        )
-        .insert(core)
-    }
-
     fn update_boundary(
         &self,
         update: impl FnOnce(CurveBoundary<Point<1>>) -> CurveBoundary<Point<1>>,
diff --git a/crates/fj-core/src/validate/shell.rs b/crates/fj-core/src/validate/shell.rs
index ff062f243..67c924c70 100644
--- a/crates/fj-core/src/validate/shell.rs
+++ b/crates/fj-core/src/validate/shell.rs
@@ -403,6 +403,7 @@ mod tests {
         objects::{Curve, Shell},
         operations::{
             build::BuildShell,
+            geometry::UpdateHalfEdgeGeometry,
             update::{
                 UpdateCycle, UpdateFace, UpdateHalfEdge, UpdateRegion,
                 UpdateShell,