diff --git a/m/weasel/configuration.nix b/m/weasel/configuration.nix
index 73ede079..54442125 100644
--- a/m/weasel/configuration.nix
+++ b/m/weasel/configuration.nix
@@ -30,4 +30,10 @@
       prefixLength = 24;
     } ];
   };
+
+  # Use tent for cache
+  nix.settings = {
+    extra-substituters = [ "https://jungle.bsc.es/cache" ];
+    extra-trusted-public-keys = [ "jungle.bsc.es:pEc7MlAT0HEwLQYPtpkPLwRsGf80ZI26aj29zMw/HH0=" ];
+  };
 }