diff --git a/README.md b/README.md
index 0daff36ed..95c503522 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ addon | version | summary
 --- | --- | ---
 [web_action_conditionable](web_action_conditionable/) | 13.0.1.0.1 | web_action_conditionable
 [web_advanced_search](web_advanced_search/) | 13.0.1.0.3 | Easier and more powerful searching tools
+[web_calendar_slot_duration](web_calendar_slot_duration/) | 13.0.1.0.0 | Customizable calendar slot durations
 [web_company_color](web_company_color/) | 13.0.1.0.1 | Web Company Color
 [web_decimal_numpad_dot](web_decimal_numpad_dot/) | 13.0.1.0.0 | Allows using numpad dot to enter period decimal separator
 [web_dialog_size](web_dialog_size/) | 13.0.1.0.0 | A module that lets the user expand a dialog box to the full screen width.