diff --git a/backends/ent/annotations.go b/backends/ent/annotations.go
index 040b447..617a531 100644
--- a/backends/ent/annotations.go
+++ b/backends/ent/annotations.go
@@ -182,6 +182,7 @@ func (backend *Backend) GetDocumentAnnotations(documentID string, names ...strin
 
 	predicates := []predicate.Annotation{
 		annotation.HasDocumentWith(document.HasMetadataWith(metadata.NativeIDEQ(documentID))),
+		annotation.Not(annotation.HasNode()),
 	}
 
 	if len(names) > 0 {
@@ -203,7 +204,10 @@ func (backend *Backend) GetDocumentsByAnnotation(name string, values ...string)
 		return nil, errUninitializedClient
 	}
 
-	predicates := []predicate.Annotation{annotation.NameEQ(name)}
+	predicates := []predicate.Annotation{
+		annotation.NameEQ(name),
+		annotation.Not(annotation.HasNode()),
+	}
 
 	if len(values) > 0 {
 		predicates = append(predicates, annotation.ValueIn(values...))
@@ -241,6 +245,7 @@ func (backend *Backend) GetDocumentUniqueAnnotation(documentID, name string) (st
 			),
 			annotation.NameEQ(name),
 			annotation.IsUniqueEQ(true),
+			annotation.Not(annotation.HasNode()),
 		).
 		Only(backend.ctx)
 	if err != nil {
diff --git a/backends/ent/annotations_test.go b/backends/ent/annotations_test.go
index 491a1e2..5a248f0 100644
--- a/backends/ent/annotations_test.go
+++ b/backends/ent/annotations_test.go
@@ -243,7 +243,7 @@ func (as *annotationsSuite) TestBackend_GetDocumentsByAnnotation() {
 			"test-value-" + strconv.Itoa(idx+2),
 			"test-value-" + strconv.Itoa(idx+3),
 		} {
-			_, err = as.Backend.Client().ExecContext(as.Backend.Context(), query, uniqueID, false, annotationName, value)
+			_, err = as.Backend.Ent().ExecContext(as.Backend.Context(), query, uniqueID, false, annotationName, value)
 			as.Require().NoError(err)
 		}
 	}
@@ -307,7 +307,7 @@ func (as *annotationsSuite) TestBackend_GetNodesByAnnotation() {
 			"test-node-value-" + strconv.Itoa(idx+2),
 			"test-node-value-" + strconv.Itoa(idx+3),
 		} {
-			_, err := as.Backend.Client().ExecContext(
+			_, err := as.Backend.Ent().ExecContext(
 				as.Backend.Context(), query, uniqueID, nodeUUID, false, annotationName, value,
 			)
 			as.Require().NoError(err)
@@ -362,7 +362,7 @@ func (as *annotationsSuite) TestBackend_GetDocumentUniqueAnnotation() {
 	annotationValue := "unique-value"
 	query := "INSERT INTO annotations (document_id, is_unique, name, value) VALUES (?, ?, ?, ?)"
 
-	_, err = as.Backend.Client().ExecContext(as.Backend.Context(), query, id, true, annotationName, annotationValue)
+	_, err = as.Backend.Ent().ExecContext(as.Backend.Context(), query, id, true, annotationName, annotationValue)
 	as.Require().NoError(err)
 
 	got, err := as.Backend.GetDocumentUniqueAnnotation(as.documents[0].GetMetadata().GetId(), annotationName)
@@ -382,7 +382,7 @@ func (as *annotationsSuite) TestBackend_GetNodeUniqueAnnotation() {
 	annotationValue := "unique-value"
 	query := "INSERT INTO annotations (document_id, node_id, is_unique, name, value) VALUES (?, ?, ?, ?, ?)"
 
-	_, err = as.Backend.Client().ExecContext(
+	_, err = as.Backend.Ent().ExecContext(
 		as.Backend.Context(), query, docUUID, nodeUUID, true, annotationName, annotationValue,
 	)
 	as.Require().NoError(err)
@@ -423,7 +423,7 @@ func (as *annotationsSuite) TestBackend_RemoveDocumentAnnotations() {
 
 		as.Run(name, func() {
 			for _, value := range []string{"test-value-1", "test-value-2", "test-value-3"} {
-				_, err = as.Backend.Client().ExecContext(ctx, query, uniqueID, false, annotationName, value)
+				_, err = as.Backend.Ent().ExecContext(ctx, query, uniqueID, false, annotationName, value)
 				as.Require().NoError(err)
 			}
 
@@ -476,7 +476,7 @@ func (as *annotationsSuite) TestBackend_RemoveNodeAnnotations() {
 
 		as.Run(name, func() {
 			for _, value := range []string{"test-node-value-1", "test-node-value-2", "test-node-value-3"} {
-				_, err = as.Backend.Client().ExecContext(ctx, query, docUUID, nodeID, false, annotationName, value)
+				_, err = as.Backend.Ent().ExecContext(ctx, query, docUUID, nodeID, false, annotationName, value)
 				as.Require().NoError(err)
 			}
 
@@ -632,7 +632,7 @@ func (as *annotationsSuite) TestBackend_SetNodeUniqueAnnotation() { //nolint:dup
 func (as *annotationsSuite) getTestResult(annotationName string) ent.Annotations {
 	as.T().Helper()
 
-	result, err := as.Backend.Client().QueryContext(
+	result, err := as.Backend.Ent().QueryContext(
 		as.Backend.Context(),
 		"SELECT * FROM annotations WHERE name == ?",
 		annotationName,
diff --git a/backends/ent/backend.go b/backends/ent/backend.go
index 25215b2..f85f79e 100644
--- a/backends/ent/backend.go
+++ b/backends/ent/backend.go
@@ -43,6 +43,10 @@ func NewBackend(opts ...Option) *Backend {
 	return backend
 }
 
+func (backend *Backend) Ent() *ent.Client {
+	return backend.client
+}
+
 func (backend *Backend) InitClient() error {
 	if backend.Options == nil {
 		backend.Options = NewBackendOptions()
diff --git a/backends/ent/internal_test.go b/backends/ent/internal_test.go
index 9d81424..62aa16f 100644
--- a/backends/ent/internal_test.go
+++ b/backends/ent/internal_test.go
@@ -6,15 +6,7 @@
 
 package ent
 
-import (
-	"context"
-
-	"github.com/protobom/storage/internal/backends/ent"
-)
-
-func (backend *Backend) Client() *ent.Client {
-	return backend.client
-}
+import "context"
 
 func (backend *Backend) Context() context.Context {
 	return backend.ctx
diff --git a/backends/ent/store_test.go b/backends/ent/store_test.go
index 29d51cd..214ce0c 100644
--- a/backends/ent/store_test.go
+++ b/backends/ent/store_test.go
@@ -65,7 +65,7 @@ func (ss *storeSuite) TestBackend_Store() {
 		ss.Require().NoError(ss.Backend.Store(document, nil))
 	}
 
-	results, err := ss.Backend.Client().Document.
+	results, err := ss.Backend.Ent().Document.
 		Query().
 		WithMetadata().
 		WithNodeList().