diff --git a/Surface_reconstruction_points_3/demo/Surface_reconstruction_points_3/CMakeLists.txt b/Surface_reconstruction_points_3/demo/Surface_reconstruction_points_3/CMakeLists.txt
index 7a71f32b709..f3b90e0dfb3 100644
--- a/Surface_reconstruction_points_3/demo/Surface_reconstruction_points_3/CMakeLists.txt
+++ b/Surface_reconstruction_points_3/demo/Surface_reconstruction_points_3/CMakeLists.txt
@@ -102,7 +102,6 @@ if(CGAL_Qt4_FOUND AND QT4_FOUND AND OPENGL_FOUND AND QGLVIEWER_FOUND)
 
   # Temporary debugging stuff
   ADD_DEFINITIONS( "-DDEBUG_TRACE" ) # turn on traces
-  string(REGEX REPLACE "-DCGAL_NDEBUG" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}") # turn on assertions
 
   qt4_wrap_ui( UI_FILES MainWindow.ui)
 
diff --git a/Surface_reconstruction_points_3/examples/Surface_reconstruction_points_3/CMakeLists.txt b/Surface_reconstruction_points_3/examples/Surface_reconstruction_points_3/CMakeLists.txt
index 6d24d7260eb..793b1482b24 100644
--- a/Surface_reconstruction_points_3/examples/Surface_reconstruction_points_3/CMakeLists.txt
+++ b/Surface_reconstruction_points_3/examples/Surface_reconstruction_points_3/CMakeLists.txt
@@ -54,7 +54,6 @@ if ( CGAL_FOUND )
 
   # Temporary debugging stuff
   ADD_DEFINITIONS( "-DDEBUG_TRACE" ) # turn on traces
-  string(REGEX REPLACE "-DCGAL_NDEBUG" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}") # turn on assertions
 
   # Executables that do *not* require BLAS, LAPACK nor TAUCS
   create_single_source_cgal_program( "APSS_reconstruction.cpp" )
diff --git a/Surface_reconstruction_points_3/test/Surface_reconstruction_points_3/CMakeLists.txt b/Surface_reconstruction_points_3/test/Surface_reconstruction_points_3/CMakeLists.txt
index 2a3c5a9e076..35e54e9afaf 100644
--- a/Surface_reconstruction_points_3/test/Surface_reconstruction_points_3/CMakeLists.txt
+++ b/Surface_reconstruction_points_3/test/Surface_reconstruction_points_3/CMakeLists.txt
@@ -50,7 +50,6 @@ if ( CGAL_FOUND )
 
   # Temporary debugging stuff
   ADD_DEFINITIONS( "-DDEBUG_TRACE" ) # turn on traces
-  string(REGEX REPLACE "-DCGAL_NDEBUG" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}") # turn on assertions
 
   # Executables that do *not* require BLAS, LAPACK nor TAUCS
   create_single_source_cgal_program( "APSS_reconstruction_test.cpp" )