diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index f659088..3026b34 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -295,8 +295,8 @@
 #define IOMMU_PTE_IR (1ULL << 61)
 #define IOMMU_PTE_IW (1ULL << 62)
 
-#define DTE_FLAG_IOTLB	(0x01UL << 32)
-#define DTE_FLAG_GV	(0x01ULL << 55)
+#define DTE_FLAG_IOTLB	(1ULL << 32)
+#define DTE_FLAG_GV	(1ULL << 55)
 #define DTE_GLX_SHIFT	(56)
 #define DTE_GLX_MASK	(3)