diff --git a/blacklist.sample b/blacklist.sample
index 3e918a2..f4a28a8 100644
--- a/blacklist.sample
+++ b/blacklist.sample
@@ -11,3 +11,10 @@ blacklist wcfxo
 blacklist wctdm
 blacklist wctc4xxp
 blacklist wcb4xxp
+
+# Some mISDN drivers may try to attach to cards supported by DAHDI. If you
+# have a card which is *not* supported by DAHDI but supported by one of the
+# below drivers you should feel free to remove it from the blacklist below.
+blacklist hfcmulti
+blacklist netjet
+blacklist hfcpci