diff --git a/gitbook/SUMMARY.md b/gitbook/SUMMARY.md
index 86615a4a..9c8a452b 100644
--- a/gitbook/SUMMARY.md
+++ b/gitbook/SUMMARY.md
@@ -168,3 +168,4 @@
   * [Pinpoint](tools/pinpoint/README.md)
   * [SkyFi](tools/skyfi/README.md)
   * [Who posted what?](tools/who-posted-what?/README.md)
+  * [Zotero](tools/zotero/README.md)