diff --git a/tutorial/3/Makefile b/tutorial/3/Makefile
index f589163..4b3c135 100644
--- a/tutorial/3/Makefile
+++ b/tutorial/3/Makefile
@@ -4,7 +4,7 @@ PANDOCOPTS	= --latex-engine=xelatex \
 		  --normalize \
 		  --number-sections \
 		  --smart \
-		  -M lang=french \
+		  -M lang=fr-FR \
 		  -M fontsize=12pt \
 		  -M papersize=a4paper \
 		  -M mainfont="Linux Libertine O" \
diff --git a/tutorial/4/Makefile b/tutorial/4/Makefile
index 03aac24..b55a153 100644
--- a/tutorial/4/Makefile
+++ b/tutorial/4/Makefile
@@ -4,7 +4,7 @@ PANDOCOPTS	= --latex-engine=xelatex \
 		  --normalize \
 		  --number-sections \
 		  --smart \
-		  -M lang=french \
+		  -M lang=fr-FR \
 		  -M fontsize=12pt \
 		  -M papersize=a4paper \
 		  -M mainfont="Linux Libertine O" \
diff --git a/tutorial/docker-basis/Makefile b/tutorial/docker-basis/Makefile
index dad9e57..8d45930 100644
--- a/tutorial/docker-basis/Makefile
+++ b/tutorial/docker-basis/Makefile
@@ -4,7 +4,7 @@ PANDOCOPTS	= --latex-engine=xelatex \
 		  --normalize \
 		  --number-sections \
 		  --smart \
-		  -M lang=french \
+		  -M lang=fr-FR \
 		  -M fontsize=12pt \
 		  -M papersize=a4paper \
 		  -M mainfont="Linux Libertine O" \
diff --git a/tutorial/docker-orchestration/Makefile b/tutorial/docker-orchestration/Makefile
index 54a5b17..5a0d789 100644
--- a/tutorial/docker-orchestration/Makefile
+++ b/tutorial/docker-orchestration/Makefile
@@ -4,7 +4,7 @@ PANDOCOPTS	= --latex-engine=xelatex \
 		  --normalize \
 		  --number-sections \
 		  --smart \
-		  -M lang=french \
+		  -M lang=fr-FR \
 		  -M fontsize=12pt \
 		  -M papersize=a4paper \
 		  -M mainfont="Linux Libertine O" \
diff --git a/tutorial/dockerfiles/Makefile b/tutorial/dockerfiles/Makefile
index 04828b3..14ca366 100644
--- a/tutorial/dockerfiles/Makefile
+++ b/tutorial/dockerfiles/Makefile
@@ -4,7 +4,7 @@ PANDOCOPTS	= --latex-engine=xelatex \
 		  --normalize \
 		  --number-sections \
 		  --smart \
-		  -M lang=french \
+		  -M lang=fr-FR \
 		  -M fontsize=12pt \
 		  -M papersize=a4paper \
 		  -M mainfont="Linux Libertine O" \
diff --git a/tutorial/header.tex b/tutorial/header.tex
index d95ba6e..94a74c9 100644
--- a/tutorial/header.tex
+++ b/tutorial/header.tex
@@ -1 +1,6 @@
 \usepackage[cm]{fullpage}
+
+\addto\captionsfrench{
+  \renewcommand{\contentsname}
+    {Sommaire}
+}