diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
index eed45af1a92d..5b075c38998e 100644
--- a/arch/s390/kvm/pci.c
+++ b/arch/s390/kvm/pci.c
@@ -166,7 +166,7 @@ static int kvm_zpci_set_airq(struct zpci_dev *zdev)
 	fib.fmt0.noi = airq_iv_end(zdev->aibv);
 	fib.fmt0.aibv = virt_to_phys(zdev->aibv->vector);
 	fib.fmt0.aibvo = 0;
-	fib.fmt0.aisb = virt_to_phys(aift->sbv->vector + (zdev->aisb / 64) * 8);
+	fib.fmt0.aisb = virt_to_phys(aift->sbv->vector) + (zdev->aisb / 64) * 8;
 	fib.fmt0.aisbo = zdev->aisb & 63;
 	fib.gd = zdev->gisa;
 
@@ -308,7 +308,7 @@ static int kvm_s390_pci_aif_enable(struct zpci_dev *zdev, struct zpci_fib *fib,
 
 	/* Update guest FIB for re-issue */
 	fib->fmt0.aisbo = zdev->aisb & 63;
-	fib->fmt0.aisb = virt_to_phys(aift->sbv->vector + (zdev->aisb / 64) * 8);
+	fib->fmt0.aisb = virt_to_phys(aift->sbv->vector) + (zdev->aisb / 64) * 8;
 	fib->fmt0.isc = gisc;
 
 	/* Save some guest fib values in the host for later use */