diff --git a/sys/dev/de/if_de.c b/sys/dev/de/if_de.c
index 6e0d544e50f0..32d68d0a9bf6 100644
--- a/sys/dev/de/if_de.c
+++ b/sys/dev/de/if_de.c
@@ -5085,6 +5085,13 @@ tulip_pci_probe(device_t dev)
     if (pci_get_vendor(dev) != DEC_VENDORID)
 	return ENXIO;
 
+    /*
+     * Some LanMedia WAN cards use the Tulip chip, but they have
+     * their own driver, and we should not recognize them
+     */
+    if (pci_get_subvendor(dev) == 0x1376)
+	return ENXIO;
+
     switch (pci_get_device(dev)) {
     case CHIPID_21040:
 	name = "Digital 21040 Ethernet";
diff --git a/sys/pci/if_de.c b/sys/pci/if_de.c
index 6e0d544e50f0..32d68d0a9bf6 100644
--- a/sys/pci/if_de.c
+++ b/sys/pci/if_de.c
@@ -5085,6 +5085,13 @@ tulip_pci_probe(device_t dev)
     if (pci_get_vendor(dev) != DEC_VENDORID)
 	return ENXIO;
 
+    /*
+     * Some LanMedia WAN cards use the Tulip chip, but they have
+     * their own driver, and we should not recognize them
+     */
+    if (pci_get_subvendor(dev) == 0x1376)
+	return ENXIO;
+
     switch (pci_get_device(dev)) {
     case CHIPID_21040:
 	name = "Digital 21040 Ethernet";