diff --git a/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2/Bitstream_descartes_at_x/alg_real_utils.h b/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2/Bitstream_descartes_at_x/alg_real_utils.h
index 9bc85dc7967..e82cde82e1e 100644
--- a/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2/Bitstream_descartes_at_x/alg_real_utils.h
+++ b/Algebraic_kernel_d/include/CGAL/Algebraic_curve_kernel_2/Bitstream_descartes_at_x/alg_real_utils.h
@@ -22,7 +22,7 @@
 #include <CGAL/Algebraic_curve_kernel_2/Bitstream_descartes_at_x/Approximate_arithmetic_controller.h>
 #include <CGAL/Arithmetic_kernel.h>
 #include <CGAL/Algebraic_kernel_d/Float_traits.h>
-
+#include <CGAL/convert_to_bfi.h>
 #include <CGAL/Algebraic_kernel_d/Real_embeddable_extension.h>
 #include <CGAL/Polynomial/polynomial_gcd.h>