diff --git a/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_gredner.cpp b/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_gredner.cpp
index a9ba00a52e7..212f0306e20 100644
--- a/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_gredner.cpp
+++ b/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_gredner.cpp
@@ -14,7 +14,6 @@ int main()
 #else
 
 #include "./types.h"
-#include <CGAL/Delaunay_triangulation_2.h>
 
 #include <iostream>
 #include <fstream>
@@ -82,13 +81,13 @@ bool test(const char *filename) {
     {
       // if (true) {
       //   if (pre_run) {
-      //     Delaunay_triangulation_2<Gt> t;
+      //     Delaunay_triangulation_2<P2DTT> t;
       //     test(pts, t);
       //   }
 
       //   std::clock_t total_start = std::clock();
       //   for (int i=0; i<n_runs; ++i) {
-      //     Delaunay_triangulation_2<Gt> t;
+      //     Delaunay_triangulation_2<P2DTT> t;
       //     test(pts, t);
       //   }
       //   double total_time = (std::clock()-total_start)/(double)CLOCKS_PER_SEC;
@@ -120,7 +119,7 @@ bool test(const char *filename) {
 
 int main(int argc, char * argv[])
 {
-  typedef Periodic_2_Delaunay_triangulation_2<Gt> T;
+  typedef Periodic_2_Delaunay_triangulation_2<P2DTT> T;
   srand(42);
 
   int result = 0;
diff --git a/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_test.cpp b/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_test.cpp
index b8675614e8c..2468e882930 100644
--- a/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_test.cpp
+++ b/Periodic_2_triangulation_2/test/Periodic_2_triangulation_2/test_p2t2_performance_test.cpp
@@ -17,7 +17,7 @@ int main()
 #include <CGAL/Triangulation_2.h>
 #include <ctime>
 
-typedef Triangulation_2<Gt>              EuclideanTriangulation;
+typedef Triangulation_2<P2TT>              EuclideanTriangulation;
 
 const int N_RUNS = 2;
 const int N_PTS  = 50000;
@@ -50,8 +50,9 @@ int main()
   pts.resize(500000);
   for (size_t i = 0; i < pts.size(); ++i) pts[i] = *(++g) + midpoint;
 
-  Gt gt;
-  for (size_t i = 0; i < pts.size() - 2; ++i) gt.orientation_2_object()(pts[i], pts[i + 1], pts[i + 2]);
+  P2TT gt;
+  for (size_t i = 0; i < pts.size() - 2; ++i)
+    gt.orientation_2_object()(pts[i], pts[i + 1], pts[i + 2]);
 
   return 0;
 #endif