diff --git a/crates/fj-kernel/src/builder/curve.rs b/crates/fj-kernel/src/builder/curve.rs
index 44717b563..1f6dab6b3 100644
--- a/crates/fj-kernel/src/builder/curve.rs
+++ b/crates/fj-kernel/src/builder/curve.rs
@@ -1,18 +1,9 @@
-use fj_math::{Point, Scalar};
+use fj_math::Point;
 
 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_center_and_radius(
-        &mut self,
-        center: impl Into<Point<2>>,
-        radius: impl Into<Scalar>,
-    ) -> SurfacePath;
-
     /// Update partial curve to be a line, from the provided points
     ///
     /// Returns the updated path.
@@ -31,16 +22,6 @@ pub trait CurveBuilder {
 }
 
 impl CurveBuilder for PartialCurve {
-    fn update_as_circle_from_center_and_radius(
-        &mut self,
-        center: impl Into<Point<2>>,
-        radius: impl Into<Scalar>,
-    ) -> SurfacePath {
-        let path = SurfacePath::circle_from_center_and_radius(center, radius);
-        self.path = Some(path.into());
-        path
-    }
-
     fn update_as_line_from_points(
         &mut self,
         points: [impl Into<Point<2>>; 2],
diff --git a/crates/fj-kernel/src/builder/edge.rs b/crates/fj-kernel/src/builder/edge.rs
index 3d31d7415..d28e5d48e 100644
--- a/crates/fj-kernel/src/builder/edge.rs
+++ b/crates/fj-kernel/src/builder/edge.rs
@@ -133,10 +133,9 @@ impl HalfEdgeBuilder for PartialHalfEdge {
 
         let arc = fj_math::Arc::from_endpoints_and_angle(start, end, angle_rad);
 
-        let path = self
-            .curve
-            .write()
-            .update_as_circle_from_center_and_radius(arc.center, arc.radius);
+        let path =
+            SurfacePath::circle_from_center_and_radius(arc.center, arc.radius);
+        self.curve.write().path = Some(path.into());
 
         let [a_curve, b_curve] =
             [arc.start_angle, arc.end_angle].map(|coord| Point::from([coord]));