Index: kernel/arch/amd64/include/pm.h
===================================================================
--- kernel/arch/amd64/include/pm.h	(revision a13c6bc74181d051d122f6524b79cd109c3c3ea2)
+++ kernel/arch/amd64/include/pm.h	(revision 41a7f624830c173ff6e5ed22c0abc99dbc08751a)
@@ -75,7 +75,7 @@
 #define AR_WRITABLE   (1 << 1)
 #define AR_READABLE   (1 << 1)
-#define AR_TSS        (0x09)
-#define AR_INTERRUPT  (0x0e)
-#define AR_TRAP       (0x0f)
+#define AR_TSS        (0x09U)
+#define AR_INTERRUPT  (0x0eU)
+#define AR_TRAP       (0x0fU)
 
 #define DPL_KERNEL  (PL_KERNEL << 5)