diff --git a/reactos/ntoskrnl/include/internal/amd64/mm.h b/reactos/ntoskrnl/include/internal/amd64/mm.h
index 515f7290146..a5aac743bba 100644
--- a/reactos/ntoskrnl/include/internal/amd64/mm.h
+++ b/reactos/ntoskrnl/include/internal/amd64/mm.h
@@ -42,6 +42,10 @@
 #define MI_SYSTEM_VIEW_SIZE                    (16 * 1024 * 1024)
 #define MI_NUMBER_SYSTEM_PTES 22000
 
+#define MI_MIN_SECONDARY_COLORS                 8
+#define MI_SECONDARY_COLORS                     64
+#define MI_MAX_SECONDARY_COLORS                 1024
+
 PULONG64
 FORCEINLINE
 MmGetPageDirectory(VOID)