File `graphicsx.sty’ not found

Got this error when compiling a LATEX document this morning, like a gentleman:

mactex ! LaTeX Error: File `graphicsx.sty' not found.

That’s absurd, I thought! I’ve done this a thousand times, with the standard MacTeX distribution, and never once had that issue. The pertinent part of my source looked perfectly legitimate:

\usepackage{graphicsx}

And then the realisation hit me like so many bad cups of coffee.

\usepackage{graphicx}

For those who can’t see, there’s no plural for graphics.

Adding for reference here, because I couldn’t find a single search result of someone else having this problem. Hopefully if you found this through a search, I’ve spared you the same frustration.