diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22fdd29..f5af29d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,7 +23,7 @@ ambiguous situations.
 ## Unreleased
 
 ### Changed
-- Add `.cpp` to IPD link regex
+- Add `cpp` extension to default `link_regex` of IPD crawler
 
 ## 3.4.0 - 2022-05-01
 
diff --git a/CONFIG.md b/CONFIG.md
index 569780d..1355c34 100644
--- a/CONFIG.md
+++ b/CONFIG.md
@@ -146,7 +146,7 @@ requests is likely a good idea.
 - `target`: URL to a KIT-IPD page
 - `link_regex`: A regex that is matched against the `href` part of links. If it
   matches, the given link is downloaded as a file. This is used to extract
-  files from KIT-IPD pages. (Default: `^.*/[^/]*\.(?:pdf|zip|c|java)$`)
+  files from KIT-IPD pages. (Default: `^.*/[^/]*\.(?:pdf|zip|c|cpp|java)$`)
 
 ### The `kit-ilias-web` crawler