diff --git a/yaml/xyz/openbmc_project/State/Watchdog.interface.yaml b/yaml/xyz/openbmc_project/State/Watchdog.interface.yaml
index f54ec3b..8a7335f 100644
--- a/yaml/xyz/openbmc_project/State/Watchdog.interface.yaml
+++ b/yaml/xyz/openbmc_project/State/Watchdog.interface.yaml
@@ -95,3 +95,13 @@
        - name: 'OEM'
          description: >
            OEM.
+
+signals:
+    - name: Timeout
+      description: >
+        Watchdog timeout event signal
+      properties:
+         - name: Action
+           type: enum[self.Action]
+           description: >
+             The action taken during the watchdog timeout event.