diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index fda9923542c9..7bdce3b10f3d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2212,6 +2212,8 @@ static int attach_device(struct device *dev,
 	 */
 	domain_flush_tlb_pde(domain);
 
+	domain_flush_complete(domain);
+
 	return ret;
 }