diff --git a/Interpolation/demo/Interpolation/CMakeLists.txt b/Interpolation/demo/Interpolation/CMakeLists.txt
index 3e65aa6715c..8a138527bac 100644
--- a/Interpolation/demo/Interpolation/CMakeLists.txt
+++ b/Interpolation/demo/Interpolation/CMakeLists.txt
@@ -23,7 +23,7 @@ if ( CGAL_FOUND )
 
   include_directories (BEFORE "../../include")
 
-  create_single_source_cgal_program( "interpolation_2.cpp" )
+  create_single_source_cgal_program( "interpolation_2_demo.cpp" )
   create_single_source_cgal_program( "surface_voronoi.cpp" )
 
 else()
diff --git a/Interpolation/demo/Interpolation/interpolation_2.cpp b/Interpolation/demo/Interpolation/interpolation_2_demo.cpp
similarity index 100%
rename from Interpolation/demo/Interpolation/interpolation_2.cpp
rename to Interpolation/demo/Interpolation/interpolation_2_demo.cpp