diff --git a/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt b/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
index aee2bd4cefa..c4d94470200 100644
--- a/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
+++ b/Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
@@ -48,7 +48,7 @@ if ( CGAL_FOUND )
   # Activate concurrency?
   option(ACTIVATE_CONCURRENT_PSP3
          "Enable concurrency"
-         ON)
+         OFF)
      
   if( ACTIVATE_CONCURRENT_PSP3 OR ENV{ACTIVATE_CONCURRENT_PSP3} )
     find_package( TBB REQUIRED )