diff --git a/packages/language_selector.sty b/packages/language_selector.sty
index d9f0b99..b0a4075 100644
--- a/packages/language_selector.sty
+++ b/packages/language_selector.sty
@@ -1,5 +1,8 @@
 \ProvidesPackage{packages/language_selector}
 
+\newcommand{\subsubsubsection}[1]{\paragraph{#1}\smallskip}
+\newcommand{\subsubsubsubsection}[1]{\subparagraph{#1}\smallskip}
+
 \DeclareOption{french}{
 	\def\langoption{french}
 	\newcommand{\lang}[2]{#1}
@@ -9,6 +12,7 @@
 	\newcommand{\langsubsection}[2]{\subsection{#1}}
 	\newcommand{\langsubsubsection}[2]{\subsubsection{#1}}
 	\newcommand{\langsubsubsubsection}[2]{\subsubsubsection{#1}}
+	\newcommand{\langsubsubsubsubsection}[2]{\subsubsubsubsection{#1}}
 	\newcommand{\langnewcites}[3]{\newcites{#1}{#2}}
 }
 
@@ -21,6 +25,7 @@
 	\newcommand{\langsubsection}[2]{\subsection{#2}}
 	\newcommand{\langsubsubsection}[2]{\subsubsection{#2}}
 	\newcommand{\langsubsubsubsection}[2]{\subsubsubsection{#2}}
+	\newcommand{\langsubsubsubsubsection}[2]{\subsubsubsubsection{#2}}
 	\newcommand{\langnewcites}[3]{\newcites{#1}{#3}}
 }