diff --git a/image.h b/image.h
index 1f9cb96..95e95f4 100644
--- a/image.h
+++ b/image.h
@@ -59,7 +59,7 @@ struct TPoint {
   }
 };
 
-typedef TPoint<int> Point;
+typedef TPoint<int64_t> Point;
 typedef TPoint<double> DPoint; // absolute point, can be negative
 template<typename Elem, typename Traits, typename T>