diff --git a/_docs/pql_queries.md b/_docs/pql_queries.md
index 090d5ec..77e28c7 100644
--- a/_docs/pql_queries.md
+++ b/_docs/pql_queries.md
@@ -335,7 +335,7 @@ Why is that helpful? Prometheus has [native support to query PuppetDB](https://p
 
 And the related Puppet class:
 
-``puppet
+```puppet
 class profile::core::node_info (
   Optional[String[1]] $site = $::site,
   Optional[String[1]] $role = $::role,