diff --git a/artiq-full.nix b/artiq-full.nix
index f3236a6..e820620 100644
--- a/artiq-full.nix
+++ b/artiq-full.nix
@@ -48,6 +48,8 @@ let
         "mitll"
         "mitll2"
         "mitll3"
+        "mitll4master"
+        "mitll4satellite"
         "mpik"
         "mpq"
         "nict"
@@ -138,6 +140,12 @@ let
             "1" = "hustsatellite";
           };
         };
+        mitll4 = {
+          master = "mitll4master";
+          satellites = {
+            "1" = "mitll4satellite";
+          };
+        };
         vlbai = {
           master = "vlbaimaster";
           satellites = {