diff --git a/chapters/packages.tex b/chapters/packages.tex
index 17c8152c8..2326becd8 100644
--- a/chapters/packages.tex
+++ b/chapters/packages.tex
@@ -362,6 +362,7 @@ \section{Multilingual Descriptions}\label{multilingual-descriptions}
 \end{enumerate}
 
 The detailed format of these files is described in \textcite{GettextManual}.
+Use of translation files in other formats (including the binary MO file format) is not standardized in Modelica.
 For Modelica translations, only the keywords \lstinline!msgctxt!, \lstinline!msgid! and \lstinline!msgstr! are used, meaning that a translation entry looks like this:
 \begin{lstlisting}
 #: $\mathit{filename}$:$\mathit{lineNumber}$