diff --git a/src/Mass/Mass.h b/src/Mass/Mass.h
index e05a47c..1c2d0ad 100644
--- a/src/Mass/Mass.h
+++ b/src/Mass/Mass.h
@@ -18,7 +18,11 @@
 
 #include <string>
 
-enum class MassState : std::uint8_t {
+#include <Magnum/Magnum.h>
+
+using namespace Magnum;
+
+enum class MassState : UnsignedByte {
     Empty, Invalid, Valid
 };