diff --git a/Kernel_23/doc_tex/Kernel_23/main.tex b/Kernel_23/doc_tex/Kernel_23/main.tex
index 55ec9dd35e7..2139cc27e06 100644
--- a/Kernel_23/doc_tex/Kernel_23/main.tex
+++ b/Kernel_23/doc_tex/Kernel_23/main.tex
@@ -4,7 +4,7 @@
 \ccPropagateThreeToTwoColumns
 
 \ccUserChapter{2D and 3D Kernel \label{chapter-kernel-23}}
-\ccChapterAuthor{Andreas Fabri \and Geert-Jan Giezeman \and Susan Hert \and Michael Hoffmann \and Lutz Kettner \and Stefan Schirra \and Sylvain Pion}
+\ccChapterAuthor{Andreas Fabri \and Geert-Jan Giezeman \and Susan Hert \and Michael Hoffmann \and Lutz Kettner \and Sylvain Pion \and Stefan Schirra}
 
 \input{Kernel_23/PkgDescription}
 
diff --git a/Kernel_23/doc_tex/Kernel_23_ref/intro.tex b/Kernel_23/doc_tex/Kernel_23_ref/intro.tex
index 89309791216..00f81a0a0c3 100644
--- a/Kernel_23/doc_tex/Kernel_23_ref/intro.tex
+++ b/Kernel_23/doc_tex/Kernel_23_ref/intro.tex
@@ -1,3 +1,3 @@
 \ccRefChapter{2D and 3D Kernel}
-\ccChapterAuthor{Andreas Fabri \and Geert-Jan Giezeman \and Susan Hert \and Michael Hoffmann \and Lutz Kettner \and Stefan Schirra \and Sylvain Pion}
+\ccChapterAuthor{Andreas Fabri \and Geert-Jan Giezeman \and Susan Hert \and Michael Hoffmann \and Lutz Kettner \and Sylvain Pion \and Stefan Schirra }
 \ccEnableRawListOfRefpages