diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_circles_real_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_circles_real_traits_test.C
index 32a3772ccb9..47653a72689 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_circles_real_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_circles_real_traits_test.C
@@ -22,7 +22,7 @@ int main(int argc, char* argv[])
 #include <CGAL/Arr_circles_real_traits.h>
 #include <CGAL/leda_real.h> 
 
-#include <Circles_traits_test_base.h>
+#include "include/Circles_traits_test_base.h"
 
 typedef leda_real                                     NT;
 typedef CGAL::Arr_circles_real_traits<NT>             Traits;
diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_polyline_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_polyline_traits_test.C
index c69f1483025..0369578c5f9 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_polyline_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_polyline_traits_test.C
@@ -17,7 +17,7 @@ int main(int argc, char* argv[])
 
 #include <CGAL/leda_rational.h>
 #include <CGAL/Arr_leda_polyline_traits.h>
-#include <Polyline_traits_test.h>
+#include "include/Polyline_traits_test.h"
 
 typedef CGAL::Arr_leda_polyline_traits<> Traits;
 
diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_segment_exact_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_segment_exact_traits_test.C
index f707a45be4f..75e54beb9e8 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_segment_exact_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_leda_segment_exact_traits_test.C
@@ -17,7 +17,7 @@ int main(int argc, char* argv[])
 #include <CGAL/Arr_leda_segment_exact_traits.h>
 #include <CGAL/leda_rational.h>
 
-#include <Segment_traits_test.h>
+#include "include/Segment_traits_test.h"
 
 typedef leda_rational                                  NT;
 typedef CGAL::Arr_leda_segment_exact_traits            Traits;
diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_polyline_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_polyline_traits_test.C
index 27c668d8dd6..05906498819 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_polyline_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_polyline_traits_test.C
@@ -1,7 +1,7 @@
 #include <CGAL/Cartesian.h>
 
 #include <CGAL/Arr_polyline_traits.h>
-#include <Polyline_traits_test.h>
+#include "include/Polyline_traits_test.h"
 #include <CGAL/Quotient.h>
 
 typedef CGAL::Quotient<int>            NT;
diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_circle_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_circle_traits_test.C
index 3cdeb174099..075f3f6af6e 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_circle_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_circle_traits_test.C
@@ -16,7 +16,7 @@ int main(int argc, char* argv[])
 #else
 
 #include <CGAL/leda_real.h>
-#include <Segment_circle_traits_test.h>
+#include "include/Segment_circle_traits_test.h"
 #include <CGAL/Arr_segment_circle_traits.h>
 
 typedef leda_real                                  NT;
diff --git a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_exact_traits_test.C b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_exact_traits_test.C
index 39be0bc0da1..75bac7911e1 100644
--- a/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_exact_traits_test.C
+++ b/Packages/Arrangement/test/Arrangement_2_Traits/Arr_segment_exact_traits_test.C
@@ -2,7 +2,7 @@
 #include <CGAL/Arr_segment_exact_traits.h>
 #include <CGAL/Quotient.h>
 
-#include <Segment_traits_test.h>
+#include "include/Segment_traits_test.h"
 
 typedef CGAL::Quotient<int>                            NT;
 typedef CGAL::Cartesian<NT>                            R;