diff --git a/Source/Core/Core/HW/EXI_DeviceAGP.cpp b/Source/Core/Core/HW/EXI_DeviceAGP.cpp
index 44bae38db1..397ffd3979 100644
--- a/Source/Core/Core/HW/EXI_DeviceAGP.cpp
+++ b/Source/Core/Core/HW/EXI_DeviceAGP.cpp
@@ -38,7 +38,7 @@ CEXIAgp::~CEXIAgp()
   SaveFileFromEEPROM(gbapath + ".sav");
 }
 
-void CEXIAgp::CRC8(u8* data, u32 size)
+void CEXIAgp::CRC8(const u8* data, u32 size)
 {
   for (u32 it = 0; it < size; it++)
   {
diff --git a/Source/Core/Core/HW/EXI_DeviceAGP.h b/Source/Core/Core/HW/EXI_DeviceAGP.h
index 49fc697572..4a97a17eef 100644
--- a/Source/Core/Core/HW/EXI_DeviceAGP.h
+++ b/Source/Core/Core/HW/EXI_DeviceAGP.h
@@ -57,7 +57,7 @@ private:
   void LoadFileToEEPROM(const std::string& filename);
   void SaveFileFromEEPROM(const std::string& filename);
   void LoadRom();
-  void CRC8(u8* data, u32 size);
+  void CRC8(const u8* data, u32 size);
 
   u8 m_hash = 0;
   u32 m_current_cmd = 0;