diff --git a/db/collection_index.go b/db/collection_index.go
index 4fa1578037..0c1921dd62 100644
--- a/db/collection_index.go
+++ b/db/collection_index.go
@@ -196,13 +196,9 @@ func (c *collection) updateIndexedDoc(
 	}
 	txn := mustGetContextTxn(ctx)
 	for _, index := range c.indexes {
-		// We only need to update the index if one of the indexed fields
-		// on the document has been changed.
-		if isUpdatingIndexedFields(index, oldDoc, doc) {
-			err = index.Update(ctx, txn, oldDoc, doc)
-			if err != nil {
-				return err
-			}
+		err = index.Update(ctx, txn, oldDoc, doc)
+		if err != nil {
+			return err
 		}
 	}
 	return nil
@@ -594,25 +590,3 @@ func generateIndexName(col client.Collection, fields []client.IndexedFieldDescri
 	}
 	return sb.String()
 }
-
-func isUpdatingIndexedFields(index CollectionIndex, oldDoc, newDoc *client.Document) bool {
-	for _, indexedFields := range index.Description().Fields {
-		oldVal, getOldValErr := oldDoc.GetValue(indexedFields.Name)
-		newVal, getNewValErr := newDoc.GetValue(indexedFields.Name)
-
-		// GetValue will return an error when the field doesn't exist.
-		// This will happen for oldDoc only if the field hasn't been set
-		// when first creating the document. For newDoc, this will happen
-		// only if the field hasn't been set when first creating the document
-		// AND the field hasn't been set on the update.
-		switch {
-		case getOldValErr != nil && getNewValErr != nil:
-			continue
-		case getOldValErr != nil && getNewValErr == nil:
-			return true
-		case oldVal.Value() != newVal.Value():
-			return true
-		}
-	}
-	return false
-}
diff --git a/db/index.go b/db/index.go
index c041d3945c..693a18a5bf 100644
--- a/db/index.go
+++ b/db/index.go
@@ -381,6 +381,11 @@ func (index *collectionUniqueIndex) Update(
 	oldDoc *client.Document,
 	newDoc *client.Document,
 ) error {
+	// We only need to update the index if one of the indexed fields
+	// on the document has been changed.
+	if !isUpdatingIndexedFields(index, oldDoc, newDoc) {
+		return nil
+	}
 	newKey, newVal, err := index.prepareIndexRecordToStore(ctx, txn, newDoc)
 	if err != nil {
 		return err
@@ -403,3 +408,25 @@ func (index *collectionUniqueIndex) deleteDocIndex(
 	}
 	return index.deleteIndexKey(ctx, txn, key)
 }
+
+func isUpdatingIndexedFields(index CollectionIndex, oldDoc, newDoc *client.Document) bool {
+	for _, indexedFields := range index.Description().Fields {
+		oldVal, getOldValErr := oldDoc.GetValue(indexedFields.Name)
+		newVal, getNewValErr := newDoc.GetValue(indexedFields.Name)
+
+		// GetValue will return an error when the field doesn't exist.
+		// This will happen for oldDoc only if the field hasn't been set
+		// when first creating the document. For newDoc, this will happen
+		// only if the field hasn't been set when first creating the document
+		// AND the field hasn't been set on the update.
+		switch {
+		case getOldValErr != nil && getNewValErr != nil:
+			continue
+		case getOldValErr != nil && getNewValErr == nil:
+			return true
+		case oldVal.Value() != newVal.Value():
+			return true
+		}
+	}
+	return false
+}