diff --git a/Engine.cc b/Engine.cc
index 2d1a9da..933a3aa 100644
--- a/Engine.cc
+++ b/Engine.cc
@@ -788,7 +788,8 @@ void Engine::Object::render()
             dVector3 rotated_plane_direction;
             dVector3 rotated_x;
             dVector3 rotated_y;
-            dMultiply0(rotated_plane_direction, default_plane_direction, r, 1, 3, 3);
+            dMultiply0(rotated_plane_direction, default_plane_direction,
+                    r, 1, 3, 3);
             dMultiply0(rotated_x, default_x, r, 1, 3, 3);
             dMultiply0(rotated_y, default_y, r, 1, 3, 3);