diff --git a/crates/fj-core/src/algorithms/approx/curve.rs b/crates/fj-core/src/algorithms/approx/curve.rs
index f2b6a362e..71d01d6ff 100644
--- a/crates/fj-core/src/algorithms/approx/curve.rs
+++ b/crates/fj-core/src/algorithms/approx/curve.rs
@@ -42,7 +42,7 @@ impl Approx
     }
 }
 
-pub(super) fn approx_curve(
+fn approx_curve(
     path: &SurfacePath,
     surface: &Surface,
     boundary: CurveBoundary<Point<1>>,