diff --git a/src/kernel/topology/vertices.rs b/src/kernel/topology/vertices.rs
index ff121db7c..3643d98a5 100644
--- a/src/kernel/topology/vertices.rs
+++ b/src/kernel/topology/vertices.rs
@@ -69,6 +69,23 @@ impl Vertex<3> {
     }
 }
 
+impl Vertex<1> {
+    /// Create a transformed vertex
+    ///
+    /// This is a 3D transformation that transforms the canonical form of the
+    /// vertex, but leaves the location untouched. Since `self` is a
+    /// 1-dimensional vertex, transforming the location is not possible.
+    ///
+    /// And, presumably, also not necessary, as this is likely part of a larger
+    /// transformation that also transforms the curve the vertex is on. Making
+    /// sure this is the case, is the responsibility of the caller.
+    #[must_use]
+    pub fn transform(mut self, transform: &Transform) -> Self {
+        self.canonical = transform.transform_point(&self.canonical);
+        self
+    }
+}
+
 impl<const D: usize> Vertex<D> {
     /// Access the location of this vertex
     pub fn location(&self) -> &Point<D> {
@@ -82,14 +99,4 @@ impl<const D: usize> Vertex<D> {
             canonical: self.canonical,
         }
     }
-
-    /// Create a transformed vertex
-    ///
-    /// The transformed vertex has its canonical form transformed by the
-    /// transformation provided, but is otherwise identical.
-    #[must_use]
-    pub fn transform(mut self, transform: &Transform) -> Self {
-        self.canonical = transform.transform_point(&self.canonical);
-        self
-    }
 }