diff --git a/internal/home/clients.go b/internal/home/clients.go
index 4f3870ec9f3..85f30c0e5cd 100644
--- a/internal/home/clients.go
+++ b/internal/home/clients.go
@@ -16,6 +16,7 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/internal/dnsforward"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
 	"github.com/AdguardTeam/AdGuardHome/internal/querylog"
+	"github.com/AdguardTeam/AdGuardHome/internal/schedule"
 	"github.com/AdguardTeam/AdGuardHome/internal/whois"
 	"github.com/AdguardTeam/dnsproxy/proxy"
 	"github.com/AdguardTeam/dnsproxy/upstream"
@@ -261,6 +262,12 @@ func (o *clientObject) toPersistent(
 		}
 	}
 
+	if o.BlockedServices == nil {
+		o.BlockedServices = &filtering.BlockedServices{
+			Schedule: &schedule.Weekly{},
+		}
+	}
+
 	err = o.BlockedServices.Validate()
 	if err != nil {
 		return nil, fmt.Errorf("init blocked services %q: %w", cli.Name, err)