diff --git a/include/boost/geometry/algorithms/within.hpp b/include/boost/geometry/algorithms/within.hpp
index 9a5fb0592..14f40251d 100644
--- a/include/boost/geometry/algorithms/within.hpp
+++ b/include/boost/geometry/algorithms/within.hpp
@@ -236,7 +236,7 @@ struct box_in_box
         within_state state;
         box_in_box_helper
             <
-                Box1, Box1, Strategy,
+                Box1, Box2, Strategy,
                 0, dimension<Box1>::type::value
             >::apply(box1, box2, strategy, state);
         return state.code();