diff --git a/Straight_skeleton_extrusion_2/test/Straight_skeleton_extrusion_2/CMakeLists.txt b/Straight_skeleton_extrusion_2/test/Straight_skeleton_extrusion_2/CMakeLists.txt
index 8dd920fdf64..bfc26d7ea20 100644
--- a/Straight_skeleton_extrusion_2/test/Straight_skeleton_extrusion_2/CMakeLists.txt
+++ b/Straight_skeleton_extrusion_2/test/Straight_skeleton_extrusion_2/CMakeLists.txt
@@ -5,18 +5,15 @@ cmake_minimum_required(VERSION 3.1...3.23)
 project(Straight_skeleton_extrusion_2_Tests)
 
 find_package(CGAL REQUIRED COMPONENTS Qt6 Core)
+find_package(LEDA QUIET)
 
 include_directories(BEFORE "include")
 
-# create a target per cppfile
-file(
-  GLOB cppfiles
-  RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-  ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
-foreach(cppfile ${cppfiles})
-  create_single_source_cgal_program("${cppfile}")
-endforeach()
-
-if(CGAL_Qt6_FOUND)
-  target_link_libraries(test_sls_extrude PUBLIC CGAL::CGAL_Basic_viewer)
+if (CGAL_Core_FOUND OR LEDA_FOUND)
+  create_single_source_cgal_program("test_sls_extrude.cpp")
+  if(CGAL_Qt6_FOUND)
+    target_link_libraries(test_sls_extrude PUBLIC CGAL::CGAL_Basic_viewer)
+  endif()
+else()
+  message("NOTICE: Tests require CGAL_Core (or LEDA), and will not be compiled.")
 endif()