diff --git a/internal/command/unique_constraints_model.go b/internal/command/unique_constraints_model.go
index 64b83100c2..196963611b 100644
--- a/internal/command/unique_constraints_model.go
+++ b/internal/command/unique_constraints_model.go
@@ -46,7 +46,7 @@ func (rm *UniqueConstraintReadModel) Reduce() error {
 		case *org.OrgChangedEvent:
 			rm.changeUniqueConstraint(e.Aggregate().ID, e.Aggregate().ID, org.NewAddOrgNameUniqueConstraint(e.Name))
 		case *org.DomainVerifiedEvent:
-			rm.addUniqueConstraint(e.Aggregate().ID, e.Aggregate().ID, org.NewAddOrgNameUniqueConstraint(e.Domain))
+			rm.addUniqueConstraint(e.Aggregate().ID, e.Aggregate().ID, org.NewAddOrgDomainUniqueConstraint(e.Domain))
 		case *org.DomainRemovedEvent:
 			rm.removeUniqueConstraint(e.Aggregate().ID, e.Aggregate().ID, org.UniqueOrgDomain)
 		case *iam.IDPConfigAddedEvent: