diff --git a/lib/collection.js b/lib/collection.js
index 9d2be62..f6239da 100644
--- a/lib/collection.js
+++ b/lib/collection.js
@@ -81,8 +81,9 @@ Collection.prototype.insert = function (docOrDocs, cb) {
     for (var i = 0; i < docs.length; i++) {
       if (!docs[i]._id) docs[i]._id = oid()
     }
-    server.insert(self._fullColName(), docs, writeOpts, function (err) {
+    server.insert(self._fullColName(), docs, writeOpts, function (err, res) {
       if (err) return cb(err)
+      if (res && res.result && res.result.writeErrors && res.result.writeErrors.length > 0) return cb(res.result.writeErrors[0])
       cb(null, docOrDocs)
     })
   })