diff --git a/Source/Core/Core/HW/SI_Device.h b/Source/Core/Core/HW/SI_Device.h
index 1280a6bd29..93c8d2eadb 100644
--- a/Source/Core/Core/HW/SI_Device.h
+++ b/Source/Core/Core/HW/SI_Device.h
@@ -84,12 +84,12 @@ public:
 	virtual void DoState(PointerWrap& p) {}
 
 
-	int GetDeviceNumber()
+	int GetDeviceNumber() const
 	{
 		return m_iDeviceNumber;
 	}
 
-	SIDevices GetDeviceType()
+	SIDevices GetDeviceType() const
 	{
 		return m_deviceType;
 	}