diff --git a/Algebraic_kernel_d/include/CGAL/RS/functors_z_1.h b/Algebraic_kernel_d/include/CGAL/RS/functors_z_1.h
index cbc7254385e..2d56d222c8a 100644
--- a/Algebraic_kernel_d/include/CGAL/RS/functors_z_1.h
+++ b/Algebraic_kernel_d/include/CGAL/RS/functors_z_1.h
@@ -142,7 +142,6 @@ struct Solve_z_1{
         OutputIterator operator()(const Polynomial_1 &p,
                                   OutputIterator res)const{
                 typedef std::pair<Polynomial_1,int>     polmult;
-                typedef std::vector<polmult>            sqvec;
                 typedef std::pair<ZPolynomial_1,int>    zpolmult;
                 typedef std::vector<zpolmult>           zsqvec;