Fixing class name typo for enabling reporting.
diff --git a/README.md b/README.md
index 5d3e032..3a28f8c 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@
 configuration manifest for your master.
 
 ```ruby
-class { "datadog-agent":
+class { "datadog_agent":
     api_key => "<your_api_key>",
     puppet_run_reports => true
     # ...