diff --git a/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt b/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
index 566dba417fd..ada40308b5f 100644
--- a/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
+++ b/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
@@ -363,7 +363,7 @@ the propagation of a connected component index to cross it.
 \cgalExample{Polygon_mesh_processing/connected_components_example.cpp}
 
 ****************************************
-\section{Implementation History}
+\section PMPHistory Implementation History
 
 Work on this package was started during the Google Summer of Code 2013 internship of
 Ilker %O. Yaz.