diff --git a/Triangulation_2/doc_tex/Triangulation_2_ref/Triangulation_2.tex b/Triangulation_2/doc_tex/Triangulation_2_ref/Triangulation_2.tex
index cdfcb452ad9..e9e512369b9 100644
--- a/Triangulation_2/doc_tex/Triangulation_2_ref/Triangulation_2.tex
+++ b/Triangulation_2/doc_tex/Triangulation_2_ref/Triangulation_2.tex
@@ -260,7 +260,7 @@ of the current triangulation.}
 refer to different triangulations~: 
  if \ccc{tr} is modified, \ccVar\ is not. }
 
-\ccMethod{Triangulation_2 operator=(const Triangulation_2& tr);}
+\ccMethod{Triangulation_2 operator=(const Triangulation_2<Traits,Tds>& tr);}
 {Assignement. All the vertices and faces are duplicated.
  After the assignement, \ccVar\ and \ccc{tr}
 refer to different triangulations~: