diff --git a/pkg/services/object/search/query/v1/keys.go b/pkg/services/object/search/query/v1/keys.go
index 6cf5d386..e39cbcfc 100644
--- a/pkg/services/object/search/query/v1/keys.go
+++ b/pkg/services/object/search/query/v1/keys.go
@@ -7,12 +7,14 @@ import (
 
 // FIXME: this is a temporary solution for object fields filters
 
-const keyChildrenField = "Object.Header.Split.Children"
+const keyParentField = "Object.Header.Split.WithChildren"
+
+const keyNoChildrenField = "Object.Header.Split.NoChildren"
 
 const keyParentIDField = "Object.Header.Split.Parent"
 
 func NewEmptyChildrenFilter() *Filter {
-	return NewFilterEqual(keyChildrenField, "")
+	return NewFilterEqual(keyNoChildrenField, "")
 }
 
 func NewParentIDFilter(par *object.ID) *Filter {
@@ -25,3 +27,10 @@ func NewRightChildQuery(par *object.ID) query.Query {
 		NewEmptyChildrenFilter(),
 	)
 }
+
+func NewLinkingQuery(par *object.ID) query.Query {
+	return New(
+		NewParentIDFilter(par),
+		NewFilterEqual(keyParentField, ""),
+	)
+}
diff --git a/pkg/services/object/search/query/v1/v1.go b/pkg/services/object/search/query/v1/v1.go
index 742d4652..3066d8f9 100644
--- a/pkg/services/object/search/query/v1/v1.go
+++ b/pkg/services/object/search/query/v1/v1.go
@@ -97,10 +97,12 @@ func headerEqual(obj *object.Object, key, value string) bool {
 		return value == cidValue(obj.GetContainerID())
 	case objectSDK.HdrSysNameOwnerID:
 		return value == ownerIDValue(obj.GetOwnerID())
-	case keyChildrenField:
+	case keyNoChildrenField:
 		return len(obj.GetChildren()) == 0
 	case keyParentIDField:
 		return idValue(obj.GetParent().GetID()) == value
+	case keyParentField:
+		return len(obj.GetChildren()) > 0
 		// TODO: add other headers
 	}
 }