diff --git a/lib/puppet/provider/es_instance_conn_validator/tcp_port.rb b/lib/puppet/provider/es_instance_conn_validator/tcp_port.rb
index 6158f10..e492712 100644
--- a/lib/puppet/provider/es_instance_conn_validator/tcp_port.rb
+++ b/lib/puppet/provider/es_instance_conn_validator/tcp_port.rb
@@ -1,51 +1,51 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', '..', '..'))
 require 'puppet/util/es_instance_validator'
 
 # This file contains a provider for the resource type `es_instance_conn_validator`,
 # which validates the Elasticsearch connection by attempting a tcp connection.
 
 Puppet::Type.type(:es_instance_conn_validator).provide(:tcp_port) do
   desc "A provider for the resource type `es_instance_conn_validator`,
         which validates the  connection by attempting an https
         connection to Elasticsearch."
 
   def exists?
     start_time = Time.now
     timeout = resource[:timeout]
-    sleep_interval = resource[:sleep]
+    sleep_interval = resource[:sleep_interval]
 
     success = validator.attempt_connection
 
     while success == false && ((Time.now - start_time) < timeout)
       # It can take several seconds for the Elasticsearch to start up;
       # especially on the first install.  Therefore, our first connection attempt
       # may fail.  Here we have somewhat arbitrarily chosen to retry every 10
       # seconds until the configurable timeout has expired.
       Puppet.debug("Failed to connect to Elasticsearch; sleeping #{sleep_interval} seconds before retry")
       sleep sleep_interval
       success = validator.attempt_connection
     end
 
     if success
       Puppet.debug("Connected to the Elasticsearch in #{Time.now - start_time} seconds.")
     else
       Puppet.notice("Failed to connect to the Elasticsearch within timeout window of #{timeout} seconds; giving up.")
     end
 
     success
   end
 
   def create
     # If `#create` is called, that means that `#exists?` returned false, which
     # means that the connection could not be established... so we need to
     # cause a failure here.
     raise Puppet::Error, "Unable to connect to Elasticsearch! (#{@validator.instance_server}:#{@validator.instance_port})"
   end
 
   private
 
   # @api private
   def validator
     @validator ||= Puppet::Util::EsInstanceValidator.new(resource[:server], resource[:port])
   end
 end