diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 93c60712a948..c48cf737b521 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -569,7 +569,7 @@ static unsigned long __iommu_calculate_sagaw(struct intel_iommu *iommu)
 {
 	unsigned long fl_sagaw, sl_sagaw;
 
-	fl_sagaw = BIT(2) | (cap_fl1gp_support(iommu->cap) ? BIT(3) : 0);
+	fl_sagaw = BIT(2) | (cap_5lp_support(iommu->cap) ? BIT(3) : 0);
 	sl_sagaw = cap_sagaw(iommu->cap);
 
 	/* Second level only. */