diff --git a/libs/geom/include/psemek/geom/vector.hpp b/libs/geom/include/psemek/geom/vector.hpp
index c86e33b0..d9a5daac 100644
--- a/libs/geom/include/psemek/geom/vector.hpp
+++ b/libs/geom/include/psemek/geom/vector.hpp
@@ -317,7 +317,7 @@ namespace psemek::geom
 	template <typename T, std::size_t N>
 	T angle(vector<T, N> const & v0, vector<T, N> const & v1)
 	{
-		return std::acos(std::max(T{-1}, std::min(T{1}, dot(v0, v1))));
+		return std::atan2(det(v0, v1), dot(v0, v1));
 	}
 
 	template <typename T>