diff --git a/users/aspen/system/system/machines/ogopogo.nix b/users/aspen/system/system/machines/ogopogo.nix
index 3d41a839e..2891d91a9 100644
--- a/users/aspen/system/system/machines/ogopogo.nix
+++ b/users/aspen/system/system/machines/ogopogo.nix
@@ -62,7 +62,7 @@
 
   hardware.enableAllFirmware = true;
 
-  hardware.pulseaudio.extraConfig = ''
+  services.pulseaudio.extraConfig = ''
     load-module module-remap-source source_name=KompleteAudio6_1 source_properties=device.description=KompleteAudio6Input1 master=alsa_input.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.multichannel-input remix=no channels=1 master_channel_map=front-left channel_map=mono
     load-module module-remap-source source_name=KompleteAudio6_2 source_properties=device.description=KompleteAudio6Input2 master=alsa_input.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.multichannel-input remix=no channels=1 master_channel_map=front-right channel_map=mono
     load-module module-remap-sink sink_name=KompleteAudio6_12 sink_properties=device.description=KompleteAudio6_12 remix=no master=alsa_output.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.analog-surround-21 channels=2 master_channel_map=front-left,front-right channel_map=front-left,front-right
diff --git a/users/aspen/system/system/machines/yeren.nix b/users/aspen/system/system/machines/yeren.nix
index 1af6327a6..bb3f48127 100644
--- a/users/aspen/system/system/machines/yeren.nix
+++ b/users/aspen/system/system/machines/yeren.nix
@@ -123,7 +123,7 @@
 
   hardware.graphics.enable32Bit = true;
 
-  hardware.pulseaudio.extraConfig = ''
+  services.pulseaudio.extraConfig = ''
     load-module module-remap-source source_name=KompleteAudio6_1 source_properties=device.description=KompleteAudio6Input1 master=alsa_input.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.multichannel-input remix=no channels=1 master_channel_map=front-left channel_map=mono
     load-module module-remap-source source_name=KompleteAudio6_2 source_properties=device.description=KompleteAudio6Input2 master=alsa_input.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.multichannel-input remix=no channels=1 master_channel_map=front-right channel_map=mono
     load-module module-remap-sink sink_name=KompleteAudio6_12 sink_properties=device.description=KompleteAudio6_12 remix=no master=alsa_output.usb-Native_Instruments_Komplete_Audio_6_458E0FFD-00.analog-surround-21 channels=2 master_channel_map=front-left,front-right channel_map=front-left,front-right
diff --git a/users/aspen/system/system/modules/sound.nix b/users/aspen/system/system/modules/sound.nix
index c97e19f9b..bf669d584 100644
--- a/users/aspen/system/system/modules/sound.nix
+++ b/users/aspen/system/system/modules/sound.nix
@@ -2,7 +2,7 @@
 
 {
   # Enable sound.
-  hardware.pulseaudio.enable = true;
+  services.pulseaudio.enable = true;
   services.pipewire.enable = false;
 
   environment.systemPackages = with pkgs; [
@@ -12,5 +12,5 @@
     pavucontrol
   ];
 
-  hardware.pulseaudio.package = pkgs.pulseaudioFull;
+  services.pulseaudio.package = pkgs.pulseaudioFull;
 }
diff --git a/users/tazjin/nixos/frog/default.nix b/users/tazjin/nixos/frog/default.nix
index 226886bfb..30bdb1fd2 100644
--- a/users/tazjin/nixos/frog/default.nix
+++ b/users/tazjin/nixos/frog/default.nix
@@ -46,16 +46,16 @@ lib.fix (self: {
       enable32Bit = true;
     };
 
-    pulseaudio = {
-      enable = true;
-      package = pkgs.pulseaudioFull;
-    };
-
     bluetooth = {
       enable = true;
     };
   };
 
+  services.pulseaudio = {
+    enable = true;
+    package = pkgs.pulseaudioFull;
+  };
+
   nix.settings = {
     max-jobs = 48;
     substituters = [ "ssh://nix-ssh@whitby.tvl.fyi" ];
diff --git a/users/tazjin/nixos/khamovnik/default.nix b/users/tazjin/nixos/khamovnik/default.nix
index b84911520..feccc420e 100644
--- a/users/tazjin/nixos/khamovnik/default.nix
+++ b/users/tazjin/nixos/khamovnik/default.nix
@@ -121,7 +121,7 @@ in
   };
 
   # Enable sound with pipewire.
-  hardware.pulseaudio.enable = false;
+  services.pulseaudio.enable = false;
   security.rtkit.enable = true;
   services.pipewire = {
     enable = true;