diff --git a/Design-Principles.md b/Design-Principles.md
index b0f957d..c94995b 100644
--- a/Design-Principles.md
+++ b/Design-Principles.md
@@ -6,7 +6,7 @@
 - Some features like Trello:
   - Import from Trello
   - Shortcuts https://github.com/wekan/wekan/issues/1878
-  - IFTTT Rules like Trello Butler
+  - IFTTT Rules like Trello Butler https://github.com/wekan/wekan/wiki/IFTTT
   - Progress bar of checklist
 - Some features like Jira:
   - Multiple assignees