# The changes package and british babel: Undefined control sequence

Using the changes package, whenever I use the babel package with the british option, I get an "Undefined control sequence" error that points to the line where I want to use the changes markup. However, I do not get any errors when british is replaced with english. Minimal working example below.

\documentclass{article}
\usepackage[british]{babel}
\usepackage{changes}
\begin{document}

\end{document}

• Same happens with Spanish babel
– e18r
Apr 26 '16 at 14:36

The changes package supports a few babel languages, but not british.

You can solve the issue by adding the support yourself:

\documentclass{article}
\usepackage[british]{babel}
\usepackage{changes}


You can ask the package maintainer to add support, as it's really easy: I just copied the code for english, changing \captionsenglish to \captionsbritish.