diff --git a/stdeb.cfg b/stdeb.cfg
index be040279..8c33d4a4 100644
--- a/stdeb.cfg
+++ b/stdeb.cfg
@@ -1,5 +1,5 @@
 [DEFAULT]
-Depends: python-jinja2, python-pkg-resources, python-plastex, python-unidecode, texlive-latex-base, texlive-latex-recommended, texlive-latex-extra, lilypond, texlive-fonts-recommended
+Depends: python-jinja2, python-pkg-resources, python-plastex, python-chardet, python-unidecode, texlive-latex-base, texlive-latex-recommended, texlive-latex-extra, lilypond, texlive-fonts-recommended
 Recommends: texlive-lang-english, texlive-lang-french, texlive-lang-portuguese, texlive-lang-spanish, texlive-fonts-extra
 XS-Python-Version: >=2.7
 Section: tex