diff --git a/cdist/conf/type/__apt_pin/manifest b/cdist/conf/type/__apt_pin/manifest
index e72a8fdd..983b2b42 100755
--- a/cdist/conf/type/__apt_pin/manifest
+++ b/cdist/conf/type/__apt_pin/manifest
@@ -57,6 +57,11 @@ __file "/etc/apt/preferences.d/$name" \
     --owner root --group root --mode 0644 \
     --state "$state" \
     --source - << EOF
+# Created by cdist ${__type##*/}
+# Do not change. Changes will be overwritten.
+#
+
+# $name
 Package: $package
 Pin: $pin
 Pin-Priority: $priority
diff --git a/cdist/conf/type/__apt_pin/parameter/default/priority b/cdist/conf/type/__apt_pin/parameter/default/priority
new file mode 100644
index 00000000..1b79f38e
--- /dev/null
+++ b/cdist/conf/type/__apt_pin/parameter/default/priority
@@ -0,0 +1 @@
+500
diff --git a/cdist/conf/type/__apt_pin/parameter/optional b/cdist/conf/type/__apt_pin/parameter/optional
index 52f01fd2..847e703d 100644
--- a/cdist/conf/type/__apt_pin/parameter/optional
+++ b/cdist/conf/type/__apt_pin/parameter/optional
@@ -1,2 +1,3 @@
 state
 package
+priority
diff --git a/cdist/conf/type/__apt_pin/parameter/required b/cdist/conf/type/__apt_pin/parameter/required
index 4b4e9741..c8572d92 100644
--- a/cdist/conf/type/__apt_pin/parameter/required
+++ b/cdist/conf/type/__apt_pin/parameter/required
@@ -1,2 +1 @@
 distribution
-priority