diff --git a/Solver_interface/include/CGAL/Eigen_sparse_matrix.h b/Solver_interface/include/CGAL/Eigen_sparse_matrix.h
index 2533f5fe872..83622ad9058 100644
--- a/Solver_interface/include/CGAL/Eigen_sparse_matrix.h
+++ b/Solver_interface/include/CGAL/Eigen_sparse_matrix.h
@@ -298,7 +298,7 @@ private:
 
 
 /*!
-\ingroup PkgSolverInterfaceRefLS
+\ingroup PkgSolverInterfaceLS
 
 The class `Eigen_sparse_symmetric_matrix` is a wrapper around `Eigen` matrix type
 <a href="https://eigen.tuxfamily.org/dox/classEigen_1_1SparseMatrix.html">`Eigen::SparseMatrix` </a>