diff --git a/manifests/slave.pp b/manifests/slave.pp
index 4556e7e..8cad4ec 100644
--- a/manifests/slave.pp
+++ b/manifests/slave.pp
@@ -45,6 +45,7 @@ class jenkins::slave(
       exec { 'yum Group Install':
         unless  => '/usr/bin/yum grouplist "Development tools" | /bin/grep "^Installed [Gg]roups"',
         command => '/usr/bin/yum -y groupinstall "Development tools"',
+        timeout => 1800,
       }
 
       if ($::operatingsystem != 'Fedora') {