diff --git a/lib/puppet/provider/mongodb.rb b/lib/puppet/provider/mongodb.rb
index c5944ac6c..81e4ed7d8 100644
--- a/lib/puppet/provider/mongodb.rb
+++ b/lib/puppet/provider/mongodb.rb
@@ -137,7 +137,6 @@ def self.conn_string
 
   def self.db_ismaster
     cmd_ismaster = 'db.isMaster().ismaster'
-    cmd_ismaster = mongorc_file + cmd_ismaster if mongorc_file
     db = 'admin'
     res = mongo_cmd(db, conn_string, cmd_ismaster).to_s.split(%r{\n}).last.chomp
     res.eql?('true')