diff --git a/libs/geom/include/psemek/geom/box.hpp b/libs/geom/include/psemek/geom/box.hpp
index fb8149c0..c91bae2f 100644
--- a/libs/geom/include/psemek/geom/box.hpp
+++ b/libs/geom/include/psemek/geom/box.hpp
@@ -252,6 +252,14 @@ namespace psemek::geom
 		return os;
 	}
 
+	template <typename T, std::size_t N>
+	point<T, N> clamp(point<T, N> p, box<T, N> const & b)
+	{
+		for (std::size_t i = 0; i < N; ++i)
+			p[i] = clamp(p[i], b[i]);
+		return p;
+	}
+
 	template <typename T, std::size_t N>
 	box<T, N> expand(box<T, N> b, T const & d)
 	{