dep.rec | 6 ++++--

diff --git a/dep.rec b/dep.rec
index e800f93d4b5aac65ce0074c2062787cb406a0f350fe7040014b6ee2f35cbf0db..b61d60ea6da5ad2e1f090af2d0c33bcb22964d71554536346e27b732b3e4618b 100644
--- a/dep.rec
+++ b/dep.rec
@@ -1,11 +1,13 @@
 %rec: Build
 %doc: Build session
-%mandatory: Build
+%key: Build
 %type: Build uuid
 
 %rec: Dependency
 %doc: Dependency information
 %mandatory: Type
+%allowed: Target Ctime Hash
+%unique: Type Target Ctime Hash
 %type: Type enum ifcreate ifchange always stamp
-%type: Ctime regexp /\d+\.\d+/
+%type: Ctime regexp /[0-9]+\.[0-9]+/
 %type: Hash regexp /[0-9a-f]{64}/