diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index a1a389314105..3250dc419d1e 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -81,7 +81,12 @@ in stdenv.mkDerivation {
     ls kBuild/bin/linux.x86/k* tools/linux.x86/bin/* | xargs -n 1 patchelf --set-interpreter ${stdenv.glibc}/lib/ld-linux.so.2
     ls kBuild/bin/linux.amd64/k* tools/linux.amd64/bin/* | xargs -n 1 patchelf --set-interpreter ${stdenv.glibc}/lib/ld-linux-x86-64.so.2
     find . -type f -iname '*makefile*' -exec sed -i -e 's/depmod -a/:/g' {} +
-    sed -e 's@"libasound.so.2"@"${alsaLib}/lib/libasound.so.2"@g' -i src/VBox/Main/xml/Settings.cpp src/VBox/Devices/Audio/alsa_stubs.c
+    sed -i -e '
+      s@"libasound.so.2"@"${alsaLib}/lib/libasound.so.2"@g
+      ${optionalString pulseSupport ''
+      s@"libpulse.so.0"@"${libpulseaudio}/lib/libpulse.so.0"@g
+      ''}
+    ' src/VBox/Main/xml/Settings.cpp src/VBox/Devices/Audio/{alsa,pulse}_stubs.c
     export USER=nix
     set +x
   '';