diff --git a/libs/geom/include/psemek/geom/interval.hpp b/libs/geom/include/psemek/geom/interval.hpp
index c2aab4da..d247b18c 100644
--- a/libs/geom/include/psemek/geom/interval.hpp
+++ b/libs/geom/include/psemek/geom/interval.hpp
@@ -239,6 +239,18 @@ namespace psemek::geom
 		return *this = *this | i;
 	}
 
+	template <typename T>
+	bool operator == (interval<T> const & i1, interval<T> const & i2)
+	{
+		return i1.min == i2.min && i1.max == i2.max;
+	}
+
+	template <typename T>
+	bool operator != (interval<T> const & i1, interval<T> const & i2)
+	{
+		return !(i1 == i2);
+	}
+
 	template <typename T>
 	T clamp(T x, interval<T> const & i)
 	{