diff --git a/lib/model.js b/lib/model.js
index a62fddf06cb..114ec86fec5 100644
--- a/lib/model.js
+++ b/lib/model.js
@@ -3956,7 +3956,7 @@ Model.buildBulkWriteOperations = function buildBulkWriteOperations(documents, op
 
       _applyCustomWhere(document, where);
 
-      // If shard key is set, add shard keys to _filter_ condition to right shard is targeted 
+      // If shard key is set, add shard keys to _filter_ condition to right shard is targeted
       const shardKey = this.schema.options.shardKey;
       if (shardKey) {
         const paths = Object.keys(shardKey);