diff --git a/rpcs3/Emu/Io/RB3MidiDrums.cpp b/rpcs3/Emu/Io/RB3MidiDrums.cpp
index f4409f4ef0..855f3f7a23 100644
--- a/rpcs3/Emu/Io/RB3MidiDrums.cpp
+++ b/rpcs3/Emu/Io/RB3MidiDrums.cpp
@@ -28,14 +28,14 @@ constexpr FlagByIndex BUTTON_3 = {0x04, 0};
 constexpr FlagByIndex BUTTON_4 = {0x08, 0};
 constexpr FlagByIndex BUTTON_5 = {0x10, 0};
 constexpr FlagByIndex BUTTON_6 = {0x20, 0};
-constexpr FlagByIndex BUTTON_7 = {0x40, 0};
-constexpr FlagByIndex BUTTON_8 = {0x80, 0};
+// constexpr FlagByIndex BUTTON_7 = {0x40, 0};
+// constexpr FlagByIndex BUTTON_8 = {0x80, 0};
 
 constexpr FlagByIndex BUTTON_9  = {0x01, 1};
 constexpr FlagByIndex BUTTON_10 = {0x02, 1};
 constexpr FlagByIndex BUTTON_11 = {0x04, 1};
 constexpr FlagByIndex BUTTON_12 = {0x08, 1};
-constexpr FlagByIndex BUTTON_13 = {0x10, 1};
+// constexpr FlagByIndex BUTTON_13 = {0x10, 1};
 
 constexpr usz DPAD_INDEX = 2;
 enum class DPad : u8
@@ -111,9 +111,9 @@ constexpr FlagByIndex HIHAT_PEDAL   = controller::BUTTON_6;
 constexpr FlagByIndex IS_DRUM       = controller::BUTTON_11;
 constexpr FlagByIndex IS_CYMBAL	    = controller::BUTTON_12;
 
-constexpr FlagByIndex BACK_BUTTON   = controller::BUTTON_3;
+// constexpr FlagByIndex BACK_BUTTON   = controller::BUTTON_3;
 constexpr FlagByIndex START_BUTTON  = controller::BUTTON_10;
-constexpr FlagByIndex SYSTEM_BUTTON = controller::BUTTON_13;
+// constexpr FlagByIndex SYSTEM_BUTTON = controller::BUTTON_13;
 constexpr FlagByIndex SELECT_BUTTON = controller::BUTTON_9;
 
 rb3drums::KitState start_state()
diff --git a/rpcs3/Emu/Io/RB3MidiDrums.h b/rpcs3/Emu/Io/RB3MidiDrums.h
index 8c0c0446dd..8c6bd4cf99 100644
--- a/rpcs3/Emu/Io/RB3MidiDrums.h
+++ b/rpcs3/Emu/Io/RB3MidiDrums.h
@@ -5,6 +5,7 @@
 #include <rtmidi_c.h>
 #include <chrono>
 #include <vector>
+#include <optional>
 
 namespace rb3drums
 {
diff --git a/rpcs3/Input/raw_mouse_handler.cpp b/rpcs3/Input/raw_mouse_handler.cpp
index 7baa03d55a..2bf44453c6 100644
--- a/rpcs3/Input/raw_mouse_handler.cpp
+++ b/rpcs3/Input/raw_mouse_handler.cpp
@@ -23,7 +23,7 @@ static inline void draw_overlay_cursor(u32 index, s32 x_pos, s32 y_pos, s32 x_ma
 	rsx::overlays::set_cursor(rsx::overlays::cursor_offset::last + index, x, y, color, 2'000'000, false);
 }
 #else
-static inline void draw_overlay_cursor(u32, s32, s32, s32, s32) {}
+[[maybe_unused]] static inline void draw_overlay_cursor(u32, s32, s32, s32, s32) {}
 #endif
 
 LOG_CHANNEL(input_log, "Input");