diff --git a/Source/Core/Core/HW/SI/SI_DeviceGBA.cpp b/Source/Core/Core/HW/SI/SI_DeviceGBA.cpp
index ae3c385ca5..7009becbc6 100644
--- a/Source/Core/Core/HW/SI/SI_DeviceGBA.cpp
+++ b/Source/Core/Core/HW/SI/SI_DeviceGBA.cpp
@@ -365,3 +365,12 @@ int CSIDevice_GBA::TransferInterval()
 {
   return GetTransferTime(send_data[0]);
 }
+
+bool CSIDevice_GBA::GetData(u32& hi, u32& low)
+{
+  return false;
+}
+
+void CSIDevice_GBA::SendCommand(u32 command, u8 poll)
+{
+}
diff --git a/Source/Core/Core/HW/SI/SI_DeviceGBA.h b/Source/Core/Core/HW/SI/SI_DeviceGBA.h
index c96193d98e..73ea2418f7 100644
--- a/Source/Core/Core/HW/SI/SI_DeviceGBA.h
+++ b/Source/Core/Core/HW/SI/SI_DeviceGBA.h
@@ -52,9 +52,9 @@ public:
 
   int RunBuffer(u8* _pBuffer, int _iLength) override;
   int TransferInterval() override;
+  bool GetData(u32& _Hi, u32& _Low) override;
+  void SendCommand(u32 _Cmd, u8 _Poll) override;
 
-  bool GetData(u32& _Hi, u32& _Low) override { return false; }
-  void SendCommand(u32 _Cmd, u8 _Poll) override {}
 private:
   std::array<u8, 5> send_data{};
   int num_data_received = 0;