# Overfull hbox using biblatex

Here's my MWE (this is an actual bibliography item, the draft option is there to show the overfull hbox):

\documentclass[draft]{article}

\usepackage{filecontents}
\begin{filecontents*}{x.bib}
@BOOK{LV12,
title = {Algebraic operads},
publisher = {Springer},
year = {2012},
author = {Loday, Jean-Louis and Vallette, Bruno},
volume = {346},
pages = {xxiv+634},
series = {Grundlehren der Mathematischen Wissenschaften [Fundamental Principles
of Mathematical Sciences]},
doi = {10.1007/978-3-642-30362-3},
isbn = {978-3-642-30361-6},
}
\end{filecontents*}

\usepackage{biblatex}

\begin{document}
\nocite{*}
\printbibliography
\end{document}


This produces:

Overfull \hbox (15.12822pt too wide) in paragraph at lines 27--27

I'm generally aware of how to fix overfull hbox from text I wrote myself, but not when the text is produced by a package. What is the best course of action here? Altering the entry is not an option.

As egre pointed out in the comments, you can add the hyphenation for specific words. Another possibility is to load the corresponding hyphenation patterns (along with the language dependent words), for example by loading package babel with the option ngerman. A problem arises, when you have different entries of different languages, which biblatex cannot handle so far.

So, you still need some manual labour.

\documentclass[draft]{article}
%\usepackage[ngerman]{babel}
\hyphenation{Grund-leh-ren Ma-the-ma-ti-cal}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@BOOK{LV12,
title = {Algebraic operads},
publisher = {Springer},
year = {2012},
author = {Loday, Jean-Louis and Vallette, Bruno},
volume = {346},
pages = {xxiv+634},
series = {Grundlehren der Mathematischen Wissenschaften [Fundamental
Principles of Mathematical Sciences]},
doi = {10.1007/978-3-642-30362-3},
isbn = {978-3-642-30361-6},
}
\end{filecontents*}

\usepackage{biblatex}