diff --git a/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.cpp b/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.cpp
index aa8dc57050..8f00b8188a 100644
--- a/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.cpp
+++ b/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.cpp
@@ -4,37 +4,35 @@
 
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_stub.h"
 #include "Common/Logging/Log.h"
-#include "Core/HW/Memmap.h"
 
 CWII_IPC_HLE_Device_stub::CWII_IPC_HLE_Device_stub(u32 device_id, const std::string& device_name)
     : IWII_IPC_HLE_Device(device_id, device_name)
 {
 }
 
-IPCCommandResult CWII_IPC_HLE_Device_stub::Open(u32 command_address, u32 mode)
+IOSReturnCode CWII_IPC_HLE_Device_stub::Open(const IOSOpenRequest& request)
 {
   WARN_LOG(WII_IPC_HLE, "%s faking Open()", m_name.c_str());
   m_is_active = true;
-  return GetDefaultReply();
+  return IPC_SUCCESS;
 }
 
-IPCCommandResult CWII_IPC_HLE_Device_stub::Close(u32 command_address, bool force)
+void CWII_IPC_HLE_Device_stub::Close()
 {
   WARN_LOG(WII_IPC_HLE, "%s faking Close()", m_name.c_str());
   m_is_active = false;
-  return GetDefaultReply();
 }
 
-IPCCommandResult CWII_IPC_HLE_Device_stub::IOCtl(u32 command_address)
+IPCCommandResult CWII_IPC_HLE_Device_stub::IOCtl(const IOSIOCtlRequest& request)
 {
   WARN_LOG(WII_IPC_HLE, "%s faking IOCtl()", m_name.c_str());
-  Memory::Write_U32(IPC_SUCCESS, command_address + 4);
+  request.SetReturnValue(IPC_SUCCESS);
   return GetDefaultReply();
 }
 
-IPCCommandResult CWII_IPC_HLE_Device_stub::IOCtlV(u32 command_address)
+IPCCommandResult CWII_IPC_HLE_Device_stub::IOCtlV(const IOSIOCtlVRequest& request)
 {
   WARN_LOG(WII_IPC_HLE, "%s faking IOCtlV()", m_name.c_str());
-  Memory::Write_U32(IPC_SUCCESS, command_address + 4);
+  request.SetReturnValue(IPC_SUCCESS);
   return GetDefaultReply();
 }
diff --git a/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.h b/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.h
index 68449b8172..8dd7c72eab 100644
--- a/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.h
+++ b/Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_stub.h
@@ -15,8 +15,8 @@ class CWII_IPC_HLE_Device_stub : public IWII_IPC_HLE_Device
 public:
   CWII_IPC_HLE_Device_stub(u32 device_id, const std::string& device_name);
 
-  IPCCommandResult Open(u32 command_address, u32 mode) override;
-  IPCCommandResult Close(u32 command_address, bool force = false) override;
-  IPCCommandResult IOCtl(u32 command_address) override;
-  IPCCommandResult IOCtlV(u32 command_address) override;
+  IOSReturnCode Open(const IOSOpenRequest& request) override;
+  void Close() override;
+  IPCCommandResult IOCtl(const IOSIOCtlRequest& request) override;
+  IPCCommandResult IOCtlV(const IOSIOCtlVRequest& request) override;
 };