diff --git a/Kernel_23/doc/Kernel_23/examples.txt b/Kernel_23/doc/Kernel_23/examples.txt
index f368c37477f..7a089e79115 100644
--- a/Kernel_23/doc/Kernel_23/examples.txt
+++ b/Kernel_23/doc/Kernel_23/examples.txt
@@ -13,5 +13,5 @@
 \example Kernel_23/points_and_segment.cpp
 \example Kernel_23/surprising.cpp
 \example Kernel_23/exact.cpp
-\example Triangulation_2/projection_traits.cpp
+\example Triangulation_2/triangulation_projection_traits.cpp
 */
diff --git a/Triangulation_2/examples/Triangulation_2/projection_traits.cpp b/Triangulation_2/examples/Triangulation_2/triangulation_projection_traits.cpp
similarity index 100%
rename from Triangulation_2/examples/Triangulation_2/projection_traits.cpp
rename to Triangulation_2/examples/Triangulation_2/triangulation_projection_traits.cpp