diff --git a/firmware_handler.hpp b/firmware_handler.hpp
index bfae529..b2f5a64 100644
--- a/firmware_handler.hpp
+++ b/firmware_handler.hpp
@@ -169,6 +169,7 @@
     bool expire(uint16_t session) override;
 
     bool triggerVerification();
+    bool triggerUpdate();
 
     /** Allow grabbing the current state. */
     UpdateState getCurrentState() const