diff --git a/lib/App/Netdisco/DB/Result/DevicePort.pm b/lib/App/Netdisco/DB/Result/DevicePort.pm
index 034754fa..e12f6290 100644
--- a/lib/App/Netdisco/DB/Result/DevicePort.pm
+++ b/lib/App/Netdisco/DB/Result/DevicePort.pm
@@ -175,7 +175,8 @@ device port.
 
 __PACKAGE__->might_have( properties => 'App::Netdisco::DB::Result::DevicePortProperties', {
   'foreign.ip' => 'self.ip', 'foreign.port' => 'self.port',
-});
+  }, { join_type => 'LEFT OUTER' }
+);
 
 =head2 ssid
 
diff --git a/lib/App/Netdisco/DB/ResultSet/DevicePort.pm b/lib/App/Netdisco/DB/ResultSet/DevicePort.pm
index 4b471617..84b619c6 100644
--- a/lib/App/Netdisco/DB/ResultSet/DevicePort.pm
+++ b/lib/App/Netdisco/DB/ResultSet/DevicePort.pm
@@ -154,6 +154,7 @@ sub delete {
 
   foreach my $set (qw/
     DevicePortPower
+    DevicePortProperties
     DevicePortVlan
     DevicePortWireless
     DevicePortSsid