diff --git a/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/curve_analyser_2.cpp b/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/curve_analyser_2.cpp
index b1765c6d459..e93dd1874b7 100644
--- a/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/curve_analyser_2.cpp
+++ b/Algebraic_kernel_d/demo/Algebraic_curve_kernel_2/curve_analyser_2.cpp
@@ -399,7 +399,7 @@ int main(int argc,char** argv) {
         typedef Curve_analysis_2::Event_line_iterator Event_iterator;
         typedef Curve_analysis_2::Intermediate_line_iterator 
             Intermediate_iterator;
-        typedef Curve_analysis_2::X_coordinate_1 Algebraic_real;
+        typedef Curve_analysis_2::Algebraic_real_1 Algebraic_real;
         std::ofstream out("gen_plot");
      
         // Event points
diff --git a/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Curve_analysis_2.cpp b/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Curve_analysis_2.cpp
index 8022bd20272..37ae91a48a6 100644
--- a/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Curve_analysis_2.cpp
+++ b/Algebraic_kernel_d/test/Algebraic_curve_kernel_2/Curve_analysis_2.cpp
@@ -380,7 +380,7 @@ template<typename Arithmetic_kernel> void test_routine() {
         typedef typename Algebraic_kernel_2_with_sqrt::Curve_analysis_2
             Sqrt_curve_analysis_2;
         
-        typedef typename Sqrt_curve_analysis_2::X_coordinate_1 
+        typedef typename Sqrt_curve_analysis_2::Algebraic_real_1 
             Sqrt_algebraic_real;
 
         typedef typename Sqrt_curve_analysis_2::Status_line_1