diff --git a/pkgs/applications/audio/openmpt123/default.nix b/pkgs/applications/audio/openmpt123/default.nix
index a13009407eb..da0f7484888 100644
--- a/pkgs/applications/audio/openmpt123/default.nix
+++ b/pkgs/applications/audio/openmpt123/default.nix
@@ -9,7 +9,7 @@ in stdenv.mkDerivation rec {
     sha256 = "0qp2nnz6pnl1d7yv9hcjyim7q6yax5881k1jxm8jfgjqagmz5k6p";
   };
   buildInputs = [ SDL2 pkgconfig flac libsndfile ];
-  makeFlags = [ "NO_LTDL=1 TEST=0 EXAMPLES=0" ]
+  makeFlags = [ "NO_PULSEAUDIO=1 NO_LTDL=1 TEST=0 EXAMPLES=0" ]
   ++ stdenv.lib.optional (stdenv.isDarwin) "SHARED_SONAME=0";
   installFlags = "PREFIX=\${out}";
 
diff --git a/pkgs/development/libraries/libao/default.nix b/pkgs/development/libraries/libao/default.nix
index f7261e11738..d3cb1283331 100644
--- a/pkgs/development/libraries/libao/default.nix
+++ b/pkgs/development/libraries/libao/default.nix
@@ -14,7 +14,8 @@ stdenv.mkDerivation rec {
 
   buildInputs =
     [ pkgconfig ] ++
-    lib.optional stdenv.isLinux (if usePulseAudio then libpulseaudio else alsaLib) ++
+    lib.optional usePulseAudio libpulseaudio ++
+    lib.optional stdenv.isLinux alsaLib ++
     lib.optional stdenv.isLinux libcap ++
     lib.optionals stdenv.isDarwin [ CoreAudio CoreServices AudioUnit ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 81a93893824..faa2d2db948 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8271,7 +8271,7 @@ with pkgs;
   libagar_test = callPackage ../development/libraries/libagar/libagar_test.nix { };
 
   libao = callPackage ../development/libraries/libao {
-    usePulseAudio = config.pulseaudio or true;
+    usePulseAudio = config.pulseaudio or stdenv.isLinux;
     inherit (darwin.apple_sdk.frameworks) CoreAudio CoreServices AudioUnit;
   };