diff --git a/hosts/carbon/ppp.nix b/hosts/carbon/ppp.nix
index 55c1e93..1de2f19 100644
--- a/hosts/carbon/ppp.nix
+++ b/hosts/carbon/ppp.nix
@@ -58,10 +58,9 @@
   '';
 
   networking.interfaces.net-heimnetz.useDHCP = true;
-  networking.interfaces.ppp-dtagdsl.useDHCP = true;
 
   networking.dhcpcd = {
-    enable = true;
+    enable = false;
     allowInterfaces = [
       "net-heimnetz"
       "ppp-dtagdsl"