diff --git a/attributes/default.rb b/attributes/default.rb
index cf72996..2d29e5a 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -50,7 +50,7 @@ when 'smartos'
   default['postfix']['virtual_alias_domains_db'] = '/opt/local/etc/postfix/virtual_domains'
 when 'omnios'
   default['postfix']['conf_dir'] = '/opt/omni/etc/postfix'
-  default['postfix']['aliases_db'] = 'opt/omni/etc/postfix/aliases'
+  default['postfix']['aliases_db'] = '/opt/omni/etc/postfix/aliases'
   default['postfix']['transport_db'] = '/opt/omni/etc/postfix/transport'
   default['postfix']['access_db'] = '/opt/omni/etc/postfix/access'
   default['postfix']['virtual_alias_db'] = '/etc/omni/etc/postfix/virtual'