diff --git a/doc/libraries.md b/doc/libraries.md
index 7fb38578..23e59a59 100644
--- a/doc/libraries.md
+++ b/doc/libraries.md
@@ -316,5 +316,5 @@ Contol your spotify player using babashka.
 ### [lambdaisland/open-source](https://github.com/lambdaisland/open-source)
 
 [Internal
-tooling[(https://github.com/borkdude/babashka/issues/457#issuecomment-636739415)
+tooling](https://github.com/borkdude/babashka/issues/457#issuecomment-636739415)
 used by Lambda Island projects.