diff --git a/src/main/jastadd/base/data/Tuples.jadd b/src/main/jastadd/base/data/Tuples.jadd
index 9d4e3f08d539a99139ab394be96984752aa9233b..e6cfd5f7e9d192e6b68837fdf6b87b0e1346fc56 100644
--- a/src/main/jastadd/base/data/Tuples.jadd
+++ b/src/main/jastadd/base/data/Tuples.jadd
@@ -8,6 +8,9 @@ public class Tuple2<K, V> {
         this._2 = _2;
     }
 
+    public Tuple2(){
+    }
+
     public K get_1() {
         return _1;
     }