diff --git a/Makefile.am b/Makefile.am
index 1b5acd9ab..f6ea2b7ed 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -529,7 +529,6 @@ ICU_LDADD = libicu.a $(ICU_LIBS)
 # PCM library
 
 libpcm_a_SOURCES = \
-	src/pcm/Domain.cxx src/pcm/Domain.hxx \
 	src/pcm/Traits.hxx \
 	src/pcm/Interleave.cxx src/pcm/Interleave.hxx \
 	src/pcm/PcmBuffer.cxx src/pcm/PcmBuffer.hxx \
diff --git a/src/pcm/ChannelsConverter.cxx b/src/pcm/ChannelsConverter.cxx
index cd6184f76..8c9238a92 100644
--- a/src/pcm/ChannelsConverter.cxx
+++ b/src/pcm/ChannelsConverter.cxx
@@ -20,7 +20,6 @@
 #include "config.h"
 #include "ChannelsConverter.hxx"
 #include "PcmChannels.hxx"
-#include "Domain.hxx"
 #include "util/ConstBuffer.hxx"
 #include "util/RuntimeError.hxx"
 
diff --git a/src/pcm/Domain.cxx b/src/pcm/Domain.cxx
deleted file mode 100644
index 6354b5b44..000000000
--- a/src/pcm/Domain.cxx
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2003-2016 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "Domain.hxx"
-#include "util/Domain.hxx"
-
-const Domain pcm_domain("pcm");
diff --git a/src/pcm/Domain.hxx b/src/pcm/Domain.hxx
deleted file mode 100644
index 61e85b323..000000000
--- a/src/pcm/Domain.hxx
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2003-2016 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef PCM_DOMAIN_HXX
-#define PCM_DOMAIN_HXX
-
-class Domain;
-
-extern const Domain pcm_domain;
-
-#endif
diff --git a/src/pcm/PcmConvert.cxx b/src/pcm/PcmConvert.cxx
index 2470583c8..ac2787d10 100644
--- a/src/pcm/PcmConvert.cxx
+++ b/src/pcm/PcmConvert.cxx
@@ -19,7 +19,6 @@
 
 #include "config.h"
 #include "PcmConvert.hxx"
-#include "Domain.hxx"
 #include "ConfiguredResampler.hxx"
 #include "AudioFormat.hxx"
 #include "util/ConstBuffer.hxx"
diff --git a/src/pcm/Volume.cxx b/src/pcm/Volume.cxx
index a50854190..1e82fb63e 100644
--- a/src/pcm/Volume.cxx
+++ b/src/pcm/Volume.cxx
@@ -20,7 +20,6 @@
 #include "config.h"
 #include "Volume.hxx"
 #include "Silence.hxx"
-#include "Domain.hxx"
 #include "Traits.hxx"
 #include "util/ConstBuffer.hxx"
 #include "util/WritableBuffer.hxx"