diff --git a/Source/Core/Core/HW/SI_DeviceGBA.cpp b/Source/Core/Core/HW/SI_DeviceGBA.cpp
index 802ecfd99b..880310bcb4 100644
--- a/Source/Core/Core/HW/SI_DeviceGBA.cpp
+++ b/Source/Core/Core/HW/SI_DeviceGBA.cpp
@@ -234,7 +234,7 @@ void GBASockServer::ClockSync()
   }
 }
 
-void GBASockServer::Send(u8* si_buffer)
+void GBASockServer::Send(const u8* si_buffer)
 {
   if (!client)
     if (!GetAvailableSock(client))
diff --git a/Source/Core/Core/HW/SI_DeviceGBA.h b/Source/Core/Core/HW/SI_DeviceGBA.h
index 6b9a0f7aac..e1bb966bb0 100644
--- a/Source/Core/Core/HW/SI_DeviceGBA.h
+++ b/Source/Core/Core/HW/SI_DeviceGBA.h
@@ -26,7 +26,7 @@ public:
 
   void ClockSync();
 
-  void Send(u8* si_buffer);
+  void Send(const u8* si_buffer);
   int Receive(u8* si_buffer);
 
 private: