diff --git a/libraries/AP_HAL_PX4/RCOutput.cpp b/libraries/AP_HAL_PX4/RCOutput.cpp
index 19e935c724..c44717e3b9 100644
--- a/libraries/AP_HAL_PX4/RCOutput.cpp
+++ b/libraries/AP_HAL_PX4/RCOutput.cpp
@@ -598,7 +598,7 @@ bool PX4RCOutput::enable_px4io_sbus_out(uint16_t rate_hz)
 /*
   setup output mode
  */
-void PX4RCOutput::set_output_mode(enum output_mode mode)
+void PX4RCOutput::set_output_mode(uint16_t mask, enum output_mode mode)
 {
     if (_output_mode == mode) {
         // no change
diff --git a/libraries/AP_HAL_PX4/RCOutput.h b/libraries/AP_HAL_PX4/RCOutput.h
index 0787669e06..696494cb58 100644
--- a/libraries/AP_HAL_PX4/RCOutput.h
+++ b/libraries/AP_HAL_PX4/RCOutput.h
@@ -35,7 +35,7 @@ public:
     void cork();
     void push();
 
-    void set_output_mode(enum output_mode mode) override;
+    void set_output_mode(uint16_t mask, enum output_mode mode) override;
 
     void timer_tick(void) override;
     bool enable_px4io_sbus_out(uint16_t rate_hz) override;