diff --git a/m/weasel/configuration.nix b/m/weasel/configuration.nix
index 995d0fd1c..9a91b41d3 100644
--- a/m/weasel/configuration.nix
+++ b/m/weasel/configuration.nix
@@ -25,7 +25,7 @@
       address = "10.0.40.6";
       prefixLength = 24;
     } ];
-    interfaces.ibp5s0.ipv4.addresses = [ {
+    interfaces.ibs785.ipv4.addresses = [ {
       address = "10.0.42.6";
       prefixLength = 24;
     } ];