diff --git a/machines/nucturne/default.nix b/machines/nucturne/default.nix
index 4794dda..2654f4f 100644
--- a/machines/nucturne/default.nix
+++ b/machines/nucturne/default.nix
@@ -24,7 +24,7 @@
     };
 
     # enable deamon to generate nix-index-db
-    nix-index-db-update.enable = true;
+    nix-index-db-update.enable = false;
 
     # add TUD vpn
     openvpn.enable = true;
diff --git a/machines/stel-xps/default.nix b/machines/stel-xps/default.nix
index 65c6e76..4df96b3 100644
--- a/machines/stel-xps/default.nix
+++ b/machines/stel-xps/default.nix
@@ -25,7 +25,7 @@
     };
 
     # enable deamon to generate nix-index-db
-    nix-index-db-update.enable = true;
+    nix-index-db-update.enable = false;
 
     # add TUD vpn
     openvpn.enable = true;