diff --git a/nixos/doc/manual/release-notes/rl-2505.section.md b/nixos/doc/manual/release-notes/rl-2505.section.md
index f974d5836b17..1b1d58e01358 100644
--- a/nixos/doc/manual/release-notes/rl-2505.section.md
+++ b/nixos/doc/manual/release-notes/rl-2505.section.md
@@ -111,6 +111,11 @@
 
 - `ps3-disc-dumper` was updated to 4.2.5, which removed the CLI project and now exclusively offers the GUI
 
+- [](#opt-services.nextcloud.config.dbtype) is unset by default, the previous default was `sqlite`.
+  This was done because `sqlite` is not a reasonable default since it's
+  [not recommended by upstream](https://docs.nextcloud.com/server/30/admin_manual/installation/system_requirements.html)
+  and thus doesn't qualify as default.
+
 - `asusd` has been upgraded to version 6 which supports multiple aura devices. To account for this, the single `auraConfig` configuration option has been replaced with `auraConfigs` which is an attribute set of config options per each device. The config files may also be now specified as either source files or text strings; to account for this you will need to specify that `text` is used for your existing configs, e.g.:
   ```diff
   -services.asusd.asusdConfig = '''file contents'''
diff --git a/nixos/modules/services/web-apps/nextcloud.nix b/nixos/modules/services/web-apps/nextcloud.nix
index eae005bca545..595244d8de9c 100644
--- a/nixos/modules/services/web-apps/nextcloud.nix
+++ b/nixos/modules/services/web-apps/nextcloud.nix
@@ -416,7 +416,6 @@ in {
     config = {
       dbtype = mkOption {
         type = types.enum [ "sqlite" "pgsql" "mysql" ];
-        default = "sqlite";
         description = "Database type.";
       };
       dbname = mkOption {
diff --git a/nixos/tests/nextcloud/basic.nix b/nixos/tests/nextcloud/basic.nix
index f8306503d85f..217f22714c1c 100644
--- a/nixos/tests/nextcloud/basic.nix
+++ b/nixos/tests/nextcloud/basic.nix
@@ -59,6 +59,7 @@ runTest (
 
           services.nextcloud = {
             enable = true;
+            config.dbtype = "sqlite";
             datadir = "/var/lib/nextcloud-data";
             autoUpdateApps = {
               enable = true;
diff --git a/nixos/tests/nextcloud/with-objectstore.nix b/nixos/tests/nextcloud/with-objectstore.nix
index 48e1edea67ba..5f24fc48851c 100644
--- a/nixos/tests/nextcloud/with-objectstore.nix
+++ b/nixos/tests/nextcloud/with-objectstore.nix
@@ -36,6 +36,8 @@ runTest (
           networking.firewall.allowedTCPPorts = [ 9000 ];
           environment.systemPackages = [ pkgs.minio-client ];
 
+          services.nextcloud.config.dbtype = "sqlite";
+
           services.nextcloud.config.objectstore.s3 = {
             enable = true;
             bucket = "nextcloud";