diff --git a/yum/manifests/init.pp b/yum/manifests/init.pp
index 54257a3..81a60a5 100644
--- a/yum/manifests/init.pp
+++ b/yum/manifests/init.pp
@@ -99,6 +99,29 @@ class yum::common {
 }
 
 
+# Manage yum excludes.
+#
+# === Global variables
+#
+#   $yum_exclude:
+#       Array of packets to exclude.
+#
+class yum::exclude {
+
+    if !$yum_exclude {
+        fail("\$yum_exclude must be defined for yum::exclude")
+    }
+
+    $yum_exclude_real = inline_template('<%= yum_exclude.join(" ") -%>')
+
+    augeas { "yum-exclude":
+        context => "/files/etc/yum.conf/main",
+        changes => "set exclude ${yum_exclude_real}",
+    }
+
+}
+
+
 # Add new yum repository.
 #
 # === Parameters