diff --git a/hosts/srv-core/default.nix b/hosts/srv-core/default.nix
index 56e99e6..7645421 100644
--- a/hosts/srv-core/default.nix
+++ b/hosts/srv-core/default.nix
@@ -21,7 +21,10 @@
       };
 
       services = {
-        recursive-nameserver.enable = true;
+        recursive-nameserver = {
+          enable = true;
+          blockAds = true;
+        };
         private-nameserver.enable = true;
 
         syncthing = {
diff --git a/hosts/vps-ns/default.nix b/hosts/vps-ns/default.nix
index 701eb12..98d0660 100644
--- a/hosts/vps-ns/default.nix
+++ b/hosts/vps-ns/default.nix
@@ -21,7 +21,10 @@
     };
 
     services = {
-      recursive-nameserver.enable = true;
+      recursive-nameserver = {
+        enable = true;
+        blockAds = true;
+      };
       private-nameserver.enable = true;
       public-nameserver = {
         enable = true;