diff --git a/src/mesh.cpp b/src/mesh.cpp
index 57fe49ba6b..3849f4d031 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -977,9 +977,7 @@ StructuredMesh::MeshIndex CylindricalMesh::get_indices(
   mapped_r[0] = std::hypot(r.x, r.y);
   mapped_r[2] = r[2];
 
-  mapped_r[0] += origin_[0];
-  mapped_r[1] += origin_[1];
-  mapped_r[2] += origin_[2];
+  mapped_r -= origin_;
 
   if (mapped_r[0] < FP_PRECISION) {
     mapped_r[1] = 0.0;