diff --git a/firmware/application/clock_manager.cpp b/firmware/application/clock_manager.cpp
index 0b4e577d..c7323978 100644
--- a/firmware/application/clock_manager.cpp
+++ b/firmware/application/clock_manager.cpp
@@ -296,6 +296,11 @@ void ClockManager::init() {
 	clock_generator.reset_plls();
 }
 
+void ClockManager::shutdown() {
+	run_from_irc();
+	clock_generator.reset();
+}
+
 void ClockManager::run_from_irc() {
 	change_clock_configuration(cgu::CLK_SEL::IRC);
 }
diff --git a/firmware/application/clock_manager.hpp b/firmware/application/clock_manager.hpp
index d1d56830..b9956342 100644
--- a/firmware/application/clock_manager.hpp
+++ b/firmware/application/clock_manager.hpp
@@ -43,6 +43,7 @@ public:
 	}
 
 	void init();
+	void shutdown();
 
 	void run_from_irc();
 	void run_at_full_speed();