diff --git a/watchdog.cpp b/watchdog.cpp
index de90567..0c93d31 100644
--- a/watchdog.cpp
+++ b/watchdog.cpp
@@ -36,6 +36,7 @@
         else
         {
             timer.setEnabled<std::false_type>();
+            timer.clearExpired();
             log<level::INFO>("watchdog: disabled");
         }
     }