diff --git a/libraries/AP_Logger/examples/AP_Logger_AllTypes/AP_Logger_AllTypes.cpp b/libraries/AP_Logger/examples/AP_Logger_AllTypes/AP_Logger_AllTypes.cpp
index 687586021e..2a74910086 100644
--- a/libraries/AP_Logger/examples/AP_Logger_AllTypes/AP_Logger_AllTypes.cpp
+++ b/libraries/AP_Logger/examples/AP_Logger_AllTypes/AP_Logger_AllTypes.cpp
@@ -85,8 +85,8 @@ static uint16_t log_num;
 
 class AP_LoggerTest_AllTypes : public AP_HAL::HAL::Callbacks {
 public:
-    void setup();
-    void loop();
+    void setup() override;
+    void loop() override;
 
 private: