diff --git a/Info/Layer2/HP.pm b/Info/Layer2/HP.pm
index 500b3dd1..f6e9e2d0 100644
--- a/Info/Layer2/HP.pm
+++ b/Info/Layer2/HP.pm
@@ -329,7 +329,7 @@ sub i_vlan {
         # HP4000 issue reported by Michael Robbert 5/25/06:
         # if we're already listed as a trunk port, don't 
         #   overwrite this with the untagged vlan number
-        next if defined $i_vlan->{$if} and $i_vlan->{$if} !~ /trunk/i;
+        next if defined $i_vlan->{$if} and $i_vlan->{$if} =~ /trunk/i;
 
         $i_vlan->{$if} = $vlan if defined $vlan;
     }