diff --git a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/intro.tex b/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/intro.tex
index 1f662548b3b..d5d8ca28992 100644
--- a/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/intro.tex
+++ b/Circular_kernel_2/doc_tex/Circular_kernel_2_ref/intro.tex
@@ -1,6 +1,6 @@
 \ccRefChapter{2D Circular Geometry Kernel}
 
-\ccChapterAuthor{Sylvain Pion \and Monique Teillaud}
+\ccChapterAuthor{Pedro Machado Manh\~{a}es de Castro \and Sylvain Pion \and Monique Teillaud}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \section{Geometric Concepts}