diff --git a/Alpha_wrap_3/include/CGAL/Alpha_wrap_3/internal/Point_set_oracle.h b/Alpha_wrap_3/include/CGAL/Alpha_wrap_3/internal/Point_set_oracle.h
index ad04a43f720..33f8a52b178 100644
--- a/Alpha_wrap_3/include/CGAL/Alpha_wrap_3/internal/Point_set_oracle.h
+++ b/Alpha_wrap_3/include/CGAL/Alpha_wrap_3/internal/Point_set_oracle.h
@@ -89,7 +89,7 @@ public:
 
   Point_set_oracle(const Base_GT& gt,
                    const BaseOracle& base_oracle = BaseOracle())
-    : Point_set_oracle(gt, base_oracle)
+    : Point_set_oracle(base_oracle, gt)
   { }
 
   Point_set_oracle()