diff --git a/artiq-full.nix b/artiq-full.nix
index e9823a6..e541711 100644
--- a/artiq-full.nix
+++ b/artiq-full.nix
@@ -180,12 +180,6 @@ let
               "1" = "siassatellite";
             };
           };
-          ustc5 = {
-            master = "ustc5master";
-            satellites = {
-              "1" = "ustc5satellite";
-            };
-          };
         ''}
       };
       drtio-ddbs = pkgs.lib.attrsets.mapAttrs'