diff --git a/manifests/definitions/hash.pp b/manifests/definitions/hash.pp
index f6fbfb6191e92ae5c30e83830711b66b891e3768..2ecbff8170ef515051889b6e8b8074d44c036c26 100644
--- a/manifests/definitions/hash.pp
+++ b/manifests/definitions/hash.pp
@@ -3,6 +3,7 @@ define postfix::hash ($ensure) {
     ensure => $ensure,
     mode   => 600,
     seltype => "postfix_etc_t",
+    require => Package["postfix"],
   }
 
   file {"${name}.db":
@@ -16,6 +17,7 @@ define postfix::hash ($ensure) {
     command => "postmap ${name}",
     #creates => "${name}.db", # this prevents postmap from being run !
     subscribe => File["${name}"],
-    refreshonly => true
+    refreshonly => true,
+    require => Package["postfix"],
   }
 }
diff --git a/manifests/definitions/transport.pp b/manifests/definitions/transport.pp
index 1624bcca6066773b3e1fffc4fa08c3ec43ab12b6..0e462cb840c6435f53977ee9c134da67bed09eed 100644
--- a/manifests/definitions/transport.pp
+++ b/manifests/definitions/transport.pp
@@ -4,5 +4,6 @@ define postfix::transport ($ensure, $destination) {
     file   => "/etc/postfix/transport",
     line   => "${name} ${destination}",
     notify => Exec["generate /etc/postfix/transport.db"],
+    require => Package["postfix"],
   }
 }
diff --git a/manifests/definitions/virtual.pp b/manifests/definitions/virtual.pp
index 6f3961a2cb84179dd2ffc85fadc9ba36d8d57eb0..75113409b474bebd2b8b50e7e2fb002cfe545c73 100644
--- a/manifests/definitions/virtual.pp
+++ b/manifests/definitions/virtual.pp
@@ -4,5 +4,6 @@ define postfix::virtual ($ensure, $destination) {
     file   => "/etc/postfix/virtual",
     line   => "${name} ${destination}",
     notify => Exec["generate /etc/postfix/virtual.db"],
+    require => Package["postfix"],
   }
 }