diff --git a/logger.rb b/logger.rb
index 6c2234a..5423e5f 100644
--- a/logger.rb
+++ b/logger.rb
@@ -3,7 +3,7 @@
 require 'rubygems'
 require 'mqtt'
 require 'json'
-require 'CSV'
+require 'csv'
 require 'yaml'
 
 config  = YAML.load_file('config.yaml')