diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6932f6709e..f35f41d2dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ Changelog for NeoFS Node
 - Do not increase error counter in `engine.Inhume` if shard is read-only (#1839)
 - `control drop-objects` can remove split objects (#1830)
 - Node's status in `neofs-cli netmap nodeinfo` command (#1833)
+- Child check in object assembly process of `ObjectService.Get` handler (#1878)
 
 ### Removed
 - Remove WIF and NEP2 support in `neofs-cli`'s --wallet flag (#1128)
diff --git a/pkg/services/object/get/exec.go b/pkg/services/object/get/exec.go
index 11365dce86..bbb901adbc 100644
--- a/pkg/services/object/get/exec.go
+++ b/pkg/services/object/get/exec.go
@@ -99,9 +99,13 @@ func (exec execCtx) address() oid.Address {
 	return exec.prm.addr
 }
 
+// isChild checks if reading object is a parent of the given object.
+// Object without reference to the parent (only children with the parent header
+// have it) is automatically considered as child: this should be guaranteed by
+// upper level logic.
 func (exec execCtx) isChild(obj *objectSDK.Object) bool {
 	par := obj.Parent()
-	return par != nil && equalAddresses(exec.address(), object.AddressOf(par))
+	return par == nil || equalAddresses(exec.address(), object.AddressOf(par))
 }
 
 func (exec execCtx) key() (*ecdsa.PrivateKey, error) {
@@ -244,7 +248,7 @@ func (exec *execCtx) headChild(id oid.ID) (*objectSDK.Object, bool) {
 	case err == nil:
 		child := w.Object()
 
-		if _, ok := child.ParentID(); ok && !exec.isChild(child) {
+		if !exec.isChild(child) {
 			exec.status = statusUndefined
 
 			exec.log.Debug("parent address in child object differs")