diff --git a/libs/geom/include/psemek/geom/box.hpp b/libs/geom/include/psemek/geom/box.hpp
index d1f9858b..b61fa5f1 100644
--- a/libs/geom/include/psemek/geom/box.hpp
+++ b/libs/geom/include/psemek/geom/box.hpp
@@ -55,7 +55,7 @@ namespace psemek::geom
 		{
 			T result = T{1};
 			for (auto const & i : axes)
-				result *= i.size();
+				result *= i.length();
 			return result;
 		}