diff --git a/doc/source_tree_layout.txt b/doc/source_tree_layout.txt
index 89f728d64c..8d6b3ece5e 100644
--- a/doc/source_tree_layout.txt
+++ b/doc/source_tree_layout.txt
@@ -114,7 +114,7 @@ libs/
  - libs/backends/
    (uses libpdb, ardouralsautil | appleutility, implements libardour interface)
    Interaction with Operating System's Audio/MIDI API:
-   ALSA, CoreAudio, JACK, PortAudio/ASIO, Pulseaudio
+   ALSA, CoreAudio, JACK, PortAudio/ASIO, PulseAudio
 
  - libs/surfaces/
    (uses libpbd, libevoral, libtimecode, libardour ;; libgtkmm2ext, libcanvas)
diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index b158a3c1bf..e98a6232ff 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -1191,7 +1191,7 @@ AudioEngine::client_real_time_priority ()
 	if (!_backend->is_realtime ()) {
 		/* this is only an issue with the Dummy backend.
 		 * - with JACK, we require rt permissions.
-		 * - with ALSA/Pulseaudio this can only happen if rt permissions
+		 * - with ALSA/PulseAudio this can only happen if rt permissions
 		 *   are n/a. Other attempts to get rt will fail likewise.
 		 *
 		 * perhaps:
diff --git a/libs/backends/pulseaudio/pulseaudio_backend.cc b/libs/backends/pulseaudio/pulseaudio_backend.cc
index 27d21c4293..1921da4d68 100644
--- a/libs/backends/pulseaudio/pulseaudio_backend.cc
+++ b/libs/backends/pulseaudio/pulseaudio_backend.cc
@@ -70,7 +70,7 @@ PulseAudioBackend::~PulseAudioBackend ()
 	clear_ports ();
 }
 
-/* Pulseaudio */
+/* PulseAudio */
 void
 PulseAudioBackend::close_pulse (bool unlock)
 {
@@ -334,7 +334,7 @@ PulseAudioBackend::init_pulse ()
 std::string
 PulseAudioBackend::name () const
 {
-	return X_("Pulseaudio");
+	return X_("PulseAudio");
 }
 
 bool
@@ -1151,7 +1151,7 @@ static bool already_configured ();
 static bool available ();
 
 static ARDOUR::AudioBackendInfo _descriptor = {
-	_("Pulseaudio"),
+	_("PulseAudio"),
 	instantiate,
 	deinstantiate,
 	backend_factory,
diff --git a/wscript b/wscript
index 09f15d7d43..60b14f795e 100644
--- a/wscript
+++ b/wscript
@@ -1439,10 +1439,10 @@ int main () { __int128 x = 0; return 0; }
         conf.fatal("ALSA Backend is only available on Linux")
 
     if re.search ("linux", sys.platform) is None and conf.env['BUILD_PULSEAUDIO']:
-        conf.fatal("Pulseaudio Backend is only available on Linux")
+        conf.fatal("PulseAudio Backend is only available on Linux")
 
     if conf.env['BUILD_PULSEAUDIO'] and not conf.is_defined('HAVE_PULSEAUDIO'):
-        conf.fatal("Pulseaudio Backend requires libpulse-dev")
+        conf.fatal("PulseAudio Backend requires libpulse-dev")
 
     set_compiler_flags (conf, Options.options)
 
@@ -1558,7 +1558,7 @@ const char* const ardour_config_info = "\\n\\
     write_config_text('ALSA Backend',          conf.env['BUILD_ALSABACKEND'])
     write_config_text('Dummy backend',         conf.env['BUILD_DUMMYBACKEND'])
     write_config_text('JACK Backend',          conf.env['BUILD_JACKBACKEND'])
-    write_config_text('Pulseaudio Backend',    conf.env['BUILD_PULSEAUDIO'])
+    write_config_text('PulseAudio Backend',    conf.env['BUILD_PULSEAUDIO'])
     config_text.write("\\n\\\n")
     write_config_text('Buildstack', conf.env['DEPSTACK_REV'])
     write_config_text('Mac i386 Architecture', opts.generic)