diff --git a/0002-meson-rename-Ddebug-to-Ddebug-extra.patch b/0002-meson-rename-Ddebug-to-Ddebug-extra.patch
new file mode 100644
index 0000000..81402af
--- /dev/null
+++ b/0002-meson-rename-Ddebug-to-Ddebug-extra.patch
@@ -0,0 +1,43 @@
+From 8f6b442a78d0b485f044742ad90b2e8271b4e68e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
+Date: Sun, 19 Aug 2018 19:11:30 +0200
+Subject: [PATCH] meson: rename -Ddebug to -Ddebug-extra
+
+Meson added -Doptimization and -Ddebug options, which obviously causes
+a conflict with our -Ddebug options. Let's rename it.
+
+Fixes #9883.
+---
+ meson.build       | 2 +-
+ meson_options.txt | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index f79ac4b12..2209c935a 100644
+--- a/meson.build
++++ b/meson.build
+@@ -763,7 +763,7 @@ substs.set('DEBUGTTY', get_option('debug-tty'))
+ 
+ enable_debug_hashmap = false
+ enable_debug_mmap_cache = false
+-foreach name : get_option('debug')
++foreach name : get_option('debug-extra')
+         if name == 'hashmap'
+                 enable_debug_hashmap = true
+         elif name == 'mmap-cache'
+diff --git a/meson_options.txt b/meson_options.txt
+index e3140c8c1..7b1f61bf4 100644
+--- a/meson_options.txt
++++ b/meson_options.txt
+@@ -45,7 +45,7 @@ option('debug-shell', type : 'string', value : '/bin/sh',
+        description : 'path to debug shell binary')
+ option('debug-tty', type : 'string', value : '/dev/tty9',
+        description : 'specify the tty device for debug shell')
+-option('debug', type : 'array', choices : ['hashmap', 'mmap-cache'], value : [],
++option('debug-extra', type : 'array', choices : ['hashmap', 'mmap-cache'], value : [],
+        description : 'enable extra debugging')
+ option('memory-accounting-default', type : 'boolean',
+        description : 'enable MemoryAccounting= by default')
+-- 
+2.14.4
+
diff --git a/systemd.spec b/systemd.spec
index c338ad0..42fb736 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -15,7 +15,7 @@
 Name:           systemd
 Url:            http://www.freedesktop.org/wiki/Software/systemd
 Version:        239
-Release:        4%{?gitcommit:.git%{gitcommitshort}}%{?dist}
+Release:        5%{?gitcommit:.git%{gitcommitshort}}%{?dist}
 # For a breakdown of the licensing, see README
 License:        LGPLv2+ and MIT and GPLv2+
 Summary:        System and Service Manager
@@ -51,6 +51,7 @@ GIT_DIR=../../src/systemd/.git git diffab -M v233..master@{2017-06-15} -- hwdb/[
 %endif
 
 Patch0001:      0001-build-sys-Detect-whether-struct-statx-is-defined-in-.patch
+Patch0002:      0002-meson-rename-Ddebug-to-Ddebug-extra.patch
 
 Patch0998:      0998-resolved-create-etc-resolv.conf-symlink-at-runtime.patch
 
@@ -691,6 +692,9 @@ fi
 %files tests -f .file-list-tests
 
 %changelog
+* Wed Oct  3 2018 Jan Synáček <jsynacek@redhat.com> - 239-5
+- Fix meson using -Ddebug, which results in FTBFS
+
 * Mon Sep 10 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 239-4
 - Move /etc/yum/protected.d/systemd.conf to /etc/dnf/ (#1626969)