diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index e8c6843b9600cd6ebf2e72e5cc9e75148dc1c780..1e0849e209650dbe8e5de156a6afa1d3bdf45bf3 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -465,7 +465,7 @@ static void filter_guest_per_event(struct kvm_vcpu *vcpu)
 		guest_perc &= ~PER_EVENT_IFETCH;
 
 	/* All other PER events will be given to the guest */
-	/* TODO: Check alterated address/address space */
+	/* TODO: Check altered address/address space */
 
 	vcpu->arch.sie_block->perc = guest_perc >> 24;