diff --git a/Triangulation_3/test/Triangulation_3/CMakeLists.txt b/Triangulation_3/test/Triangulation_3/CMakeLists.txt
index d5156f0d1e6..2da2b2aeecc 100644
--- a/Triangulation_3/test/Triangulation_3/CMakeLists.txt
+++ b/Triangulation_3/test/Triangulation_3/CMakeLists.txt
@@ -23,10 +23,11 @@ create_single_source_cgal_program(
   "test_RT_cell_base_with_weighted_circumcenter_3.cpp")
 create_single_source_cgal_program("test_robust_weighted_circumcenter.cpp")
 create_single_source_cgal_program("test_simplex_3.cpp")
-create_single_source_cgal_program( "test_simplex_iterator_3.cpp" )
-create_single_source_cgal_program( "test_segment_cell_traverser_3.cpp" )
 create_single_source_cgal_program( "test_segment_simplex_traverser_3.cpp" )
 if(cxx_std_17 IN_LIST CMAKE_CXX_COMPILE_FEATURES)
+  create_single_source_cgal_program( "test_simplex_iterator_3.cpp" )
+  create_single_source_cgal_program( "test_segment_cell_traverser_3.cpp" )
+  target_compile_features(test_simplex_iterator_3 PRIVATE cxx_std_17)
   target_compile_features(test_segment_simplex_traverser_3 PRIVATE cxx_std_17)
 else()
   message(