diff --git a/docs/HOWTO.md b/docs/HOWTO.md
index e6f163802..a54b21c78 100644
--- a/docs/HOWTO.md
+++ b/docs/HOWTO.md
@@ -18,7 +18,7 @@ We welcome new contributors; even those making their very first Pull Request (PR
 * [YouTube - Markdown Crash Course](https://www.youtube.com/watch?v=HUBNt18RFbo)
 
 
-Don't hesitate to ask questions; every contributor started with a first PR. So... why not join our [large, growing](https://www.apiseven.com/en/contributor-graph?chart=contributorOverTime&repo=ebookfoundation/free-programming-books) community.
+Don't hesitate to ask questions; every contributor started with a first PR. So... why not join our [large, growing](https://www.apiseven.com/en/contributor-graph?chart=contributorOverTime&repo=ebookfoundation/free-programming-books) community?
 
 <details align="center" markdown="1">
 <summary>Click to see users vs. time graphs.</summary>