diff --git a/tbsetup/libvtop_stable.pm.in b/tbsetup/libvtop_stable.pm.in
index 5ba7cd6abe9399f138ce9b2148f995f87c068157..7ea4e0b61f2216f684b29c352cdeb00224c2e994 100755
--- a/tbsetup/libvtop_stable.pm.in
+++ b/tbsetup/libvtop_stable.pm.in
@@ -3362,7 +3362,7 @@ sub GenVirtLans($)
 		    $others->{'virtualization_type'} = $vlan->_encapstyle();
 		}
 		if ($layer == 1) {
-		    $protocol = "wire";
+		    $vlan->_wiretype("wire");
 		}
 		
 		if ($trivial_ok) {
diff --git a/tbsetup/libvtop_test.pm.in b/tbsetup/libvtop_test.pm.in
index 7cf4999a99adbe1cce1ad26aaf7717b3f1edf43e..a59046ff82f184a91a2d6fb2ef9ba607d7f9c092 100755
--- a/tbsetup/libvtop_test.pm.in
+++ b/tbsetup/libvtop_test.pm.in
@@ -3558,7 +3558,7 @@ sub GenVirtLans($)
 		    $others->{'virtualization_type'} = $vlan->_encapstyle();
 		}
 		if ($layer == 1) {
-		    $protocol = "wire";
+		    $vlan->_wiretype("wire");
 		}
 		
 		if ($trivial_ok) {