lib/mongo/operation/drop_index/op_msg.rb in mongo-2.17.4 vs lib/mongo/operation/drop_index/op_msg.rb in mongo-2.18.0.beta1

@@ -28,10 +28,14 @@
         include ExecutableTransactionLabel
 
         private
 
         def selector(connection)
-          { :dropIndexes => coll_name, :index => index_name }
+          {
+            :dropIndexes => coll_name,
+            :index => index_name,
+            :comment => spec[:comment],
+          }.compact
         end
       end
     end
   end
 end