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 ada40308b5f..18391020563 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
@@ -365,9 +365,8 @@ the propagation of a connected component index to cross it.
 ****************************************
 \section PMPHistory Implementation History
 
-Work on this package was started during the Google Summer of Code 2013 internship of
-Ilker %O. Yaz.
-Sébastien Loriot and Jane Tournois worked on the finalization of the API, code, and documentation.
+A first version of this package was started by Ilker %O. Yaz and Sébastien Loriot.
+Jane Tournois worked on the finalization of the API, code, and documentation.
 
 */
 } /* namespace CGAL */