diff --git a/qvm-tools/qvm-pci b/qvm-tools/qvm-pci
index c9c715ec..90a1aed6 100755
--- a/qvm-tools/qvm-pci
+++ b/qvm-tools/qvm-pci
@@ -38,8 +38,8 @@ def find_devices_of_class(klass):
         print "ERROR when executing lspci!"
         raise IOError
 
-    rx_netdev = re.compile(r"^([0-9][0-9]:[0-9][0-9].[0-9]) \"{}".format(
-        klass))
+    rx_netdev = re.compile(r"^([0-9a-f]{2}:[0-9a-f]{2}.[0-9a-f]) \"" +
+                           klass)
     for dev in str(result[0]).splitlines():
         match = rx_netdev.match(dev)
         if match is not None: