diff --git a/extras/perf_test_cgal.cpp b/extras/perf_test_cgal.cpp
index 103be6473..562511425 100644
--- a/extras/perf_test_cgal.cpp
+++ b/extras/perf_test_cgal.cpp
@@ -57,10 +57,9 @@ void manifoldToCGALSurfaceMesh(Manifold &manifold, TriangleMesh &cgalMesh) {
 int main(int argc, char **argv) {
   for (int i = 0; i < 8; ++i) {
     Manifold sphere = Manifold::Sphere(1, (8 << i) * 4);
-    Manifold sphere2 = sphere;
-    sphere2.Translate(glm::vec3(0.5));
+    Manifold sphere2 = sphere.Translate(glm::vec3(0.5));
 
-    TriangleMesh cgalSphere, cgalSphere2, cgalOut;
+    TriangleMesh cgalSphere, cgalSphere2;
     manifoldToCGALSurfaceMesh(sphere, cgalSphere);
     manifoldToCGALSurfaceMesh(sphere2, cgalSphere2);