diff --git a/po/POTFILES.in b/po/POTFILES.in
index 43806998..404523c7 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -238,7 +238,6 @@ src/engine/imap/command/imap-append-command.vala
 src/engine/imap/command/imap-capability-command.vala
 src/engine/imap/command/imap-close-command.vala
 src/engine/imap/command/imap-command.vala
-src/engine/imap/command/imap-compress-command.vala
 src/engine/imap/command/imap-copy-command.vala
 src/engine/imap/command/imap-create-command.vala
 src/engine/imap/command/imap-examine-command.vala
diff --git a/src/engine/imap/command/imap-compress-command.vala b/src/engine/imap/command/imap-compress-command.vala
deleted file mode 100644
index 20ea0aa5..00000000
--- a/src/engine/imap/command/imap-compress-command.vala
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright 2016 Software Freedom Conservancy Inc.
- *
- * This software is licensed under the GNU Lesser General Public License
- * (version 2.1 or later).  See the COPYING file in this distribution.
- */
-
-/**
- * See [[http://tools.ietf.org/html/rfc4978]]
- */
-
-public class Geary.Imap.CompressCommand : Command {
-
-    public const string NAME = "compress";
-
-    public const string ALGORITHM_DEFLATE = "deflate";
-
-
-    public CompressCommand(string algorithm, GLib.Cancellable? should_send) {
-        base(NAME, { algorithm }, should_send);
-    }
-
-}
diff --git a/src/engine/meson.build b/src/engine/meson.build
index 5ef60a19..55797de2 100644
--- a/src/engine/meson.build
+++ b/src/engine/meson.build
@@ -100,7 +100,6 @@ engine_vala_sources = files(
   'imap/command/imap-capability-command.vala',
   'imap/command/imap-close-command.vala',
   'imap/command/imap-command.vala',
-  'imap/command/imap-compress-command.vala',
   'imap/command/imap-copy-command.vala',
   'imap/command/imap-create-command.vala',
   'imap/command/imap-delete-command.vala',