diff --git a/yum/manifests/init.pp b/yum/manifests/init.pp
index 42fd6ef..f03389f 100644
--- a/yum/manifests/init.pp
+++ b/yum/manifests/init.pp
@@ -116,7 +116,7 @@ class yum::exclude {
 
     augeas { "yum-exclude":
         context => "/files/etc/yum.conf/main",
-        changes => "set exclude ${yum_exclude_real}",
+        changes => "set exclude '${yum_exclude_real}'",
     }
 
 }