diff --git a/crates/fj-kernel/src/builder/curve.rs b/crates/fj-kernel/src/builder/curve.rs
index d91864962..44717b563 100644
--- a/crates/fj-kernel/src/builder/curve.rs
+++ b/crates/fj-kernel/src/builder/curve.rs
@@ -4,14 +4,6 @@ use crate::{geometry::path::SurfacePath, partial::PartialCurve};
 
 /// Builder API for [`PartialCurve`]
 pub trait CurveBuilder {
-    /// Update partial curve to be a circle, from the provided radius
-    ///
-    /// Returns the updated path.
-    fn update_as_circle_from_radius(
-        &mut self,
-        radius: impl Into<Scalar>,
-    ) -> SurfacePath;
-
     /// Update partial curve to be a circle, from the provided radius
     ///
     /// Returns the updated path.
@@ -39,15 +31,6 @@ pub trait CurveBuilder {
 }
 
 impl CurveBuilder for PartialCurve {
-    fn update_as_circle_from_radius(
-        &mut self,
-        radius: impl Into<Scalar>,
-    ) -> SurfacePath {
-        let path = SurfacePath::circle_from_radius(radius);
-        self.path = Some(path.into());
-        path
-    }
-
     fn update_as_circle_from_center_and_radius(
         &mut self,
         center: impl Into<Point<2>>,
diff --git a/crates/fj-kernel/src/builder/edge.rs b/crates/fj-kernel/src/builder/edge.rs
index 8ba3a42e5..3d31d7415 100644
--- a/crates/fj-kernel/src/builder/edge.rs
+++ b/crates/fj-kernel/src/builder/edge.rs
@@ -92,7 +92,8 @@ impl HalfEdgeBuilder for PartialHalfEdge {
         &mut self,
         radius: impl Into<Scalar>,
     ) -> SurfacePath {
-        let path = self.curve.write().update_as_circle_from_radius(radius);
+        let path = SurfacePath::circle_from_radius(radius);
+        self.curve.write().path = Some(path.into());
 
         let [a_curve, b_curve] =
             [Scalar::ZERO, Scalar::TAU].map(|coord| Point::from([coord]));