diff --git a/Software/grab/include/DDuplGrabber.hpp b/Software/grab/include/DDuplGrabber.hpp
index 16cf783e..105e076c 100644
--- a/Software/grab/include/DDuplGrabber.hpp
+++ b/Software/grab/include/DDuplGrabber.hpp
@@ -42,7 +42,7 @@
 MIDL_INTERFACE("29038f61-3839-4626-91fd-086879011a05") IDXGIAdapter1;
 _COM_SMARTPTR_TYPEDEF(IDXGIAdapter1, __uuidof(IDXGIAdapter1));
 namespace SystemSession {
-	enum Status;
+	enum Status : int;
 };
 enum DDuplGrabberState
 {
diff --git a/Software/src/GrabManager.hpp b/Software/src/GrabManager.hpp
index c997f637..27b6d542 100644
--- a/Software/src/GrabManager.hpp
+++ b/Software/src/GrabManager.hpp
@@ -35,7 +35,7 @@ class TimeEvaluations;
 class D3D10Grabber;
 
 namespace BlueLightReduction { class Client; };
-namespace SystemSession { enum Status; };
+namespace SystemSession { enum Status : int; };
 
 class GrabManager : public QObject
 {
diff --git a/Software/src/LedDeviceManager.hpp b/Software/src/LedDeviceManager.hpp
index efd7f5ed..0db370e8 100644
--- a/Software/src/LedDeviceManager.hpp
+++ b/Software/src/LedDeviceManager.hpp
@@ -31,7 +31,7 @@
 
 class QTimer;
 namespace SystemSession {
-	enum Status;
+	enum Status : int;
 };
 /*!
 	This class creates \a ILedDevice implementations and manages them after.