diff --git a/rules/packages/40-isdn.rules b/rules/packages/40-isdn.rules
new file mode 100644
index 0000000000..f2bc34e5c8
--- /dev/null
+++ b/rules/packages/40-isdn.rules
@@ -0,0 +1,5 @@
+# do not edit this file, it will be overwritten on update
+
+SUBSYSTEM=="capi",	GROUP="uucp"
+KERNEL=="capi",		NAME="capi20", SYMLINK+="isdn/capi20"
+KERNEL=="capi*",	NAME="capi/%n"