diff --git a/include/geometrycentral/surface/surface_point.ipp b/include/geometrycentral/surface/surface_point.ipp
index 3c4f0b0e..63a55c9c 100644
--- a/include/geometrycentral/surface/surface_point.ipp
+++ b/include/geometrycentral/surface/surface_point.ipp
@@ -151,9 +151,9 @@ inline SurfacePoint SurfacePoint::inEdge(Edge targetEdge) const {
   switch (type) {
   case SurfacePointType::Vertex:
     if (vertex == targetEdge.halfedge().tailVertex()) {
-      return SurfacePoint(targetEdge, 1);
-    } else if (vertex == targetEdge.halfedge().tipVertex()) {
       return SurfacePoint(targetEdge, 0);
+    } else if (vertex == targetEdge.halfedge().tipVertex()) {
+      return SurfacePoint(targetEdge, 1);
     }
     break;
   case SurfacePointType::Edge: