diff --git a/nixos/doc/manual/release-notes/rl-2103.xml b/nixos/doc/manual/release-notes/rl-2103.xml
index 09455611fbae..0458b3564a9f 100644
--- a/nixos/doc/manual/release-notes/rl-2103.xml
+++ b/nixos/doc/manual/release-notes/rl-2103.xml
@@ -461,6 +461,11 @@ self: super:
       mouse section.
      </para>
    </listitem>
+   <listitem>
+    <para>
+     ALSA OSS emulation (<varname>sound.enableOSSEmulation</varname>) is now disabled by default.
+    </para>
+   </listitem>
   </itemizedlist>
  </section>
 
diff --git a/nixos/modules/services/audio/alsa.nix b/nixos/modules/services/audio/alsa.nix
index 3fe76a165401..aff3fe2ba42d 100644
--- a/nixos/modules/services/audio/alsa.nix
+++ b/nixos/modules/services/audio/alsa.nix
@@ -32,7 +32,7 @@ in
 
       enableOSSEmulation = mkOption {
         type = types.bool;
-        default = true;
+        default = false;
         description = ''
           Whether to enable ALSA OSS emulation (with certain cards sound mixing may not work!).
         '';