diff --git a/gnome-desktop-plug-memory-leak.patch b/gnome-desktop-plug-memory-leak.patch
new file mode 100644
index 0000000..4744123
--- /dev/null
+++ b/gnome-desktop-plug-memory-leak.patch
@@ -0,0 +1,38 @@
+From 436ca8f0797cbd1321893cdb8f6f1ee9cddfe42b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
+Date: Mon, 26 Feb 2018 19:39:06 +0100
+Subject: bg-slide-show: Plug a memory leak
+
+https://bugzilla.gnome.org/show_bug.cgi?id=793854
+---
+ libgnome-desktop/gnome-bg-slide-show.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/libgnome-desktop/gnome-bg-slide-show.c b/libgnome-desktop/gnome-bg-slide-show.c
+index cb9b90b..c4674ba 100644
+--- a/libgnome-desktop/gnome-bg-slide-show.c
++++ b/libgnome-desktop/gnome-bg-slide-show.c
+@@ -741,17 +741,20 @@ on_file_loaded (GFile        *file,
+ 
+     if (!loaded) {
+             g_task_return_error (task, error);
++            g_object_unref (task);
+             return;
+     }
+ 
+     if (!parse_file_contents (g_task_get_source_object (task), contents, length, &error)) {
+             g_task_return_error (task, error);
++            g_object_unref (task);
+             g_free (contents);
+             return;
+     }
+     g_free (contents);
+ 
+     g_task_return_boolean (task, TRUE);
++    g_object_unref (task);
+ }
+ 
+ /**
+-- 
+cgit v0.12
+
diff --git a/gnome-desktop.changes b/gnome-desktop.changes
index e612ba6..e47a3ba 100644
--- a/gnome-desktop.changes
+++ b/gnome-desktop.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Apr 30 07:02:29 UTC 2018 - bjorn.lie@gmail.com
+
+- Add gnome-desktop-plug-memory-leak.patch: bg-slide-show: Plug a
+  memory leak (bgo#793878).
+
 -------------------------------------------------------------------
 Wed Apr 11 08:18:21 UTC 2018 - bjorn.lie@gmail.com
 
diff --git a/gnome-desktop.spec b/gnome-desktop.spec
index 4522c97..b5d9a24 100644
--- a/gnome-desktop.spec
+++ b/gnome-desktop.spec
@@ -28,6 +28,8 @@ Source:         http://download.gnome.org/sources/gnome-desktop/3.28/%{name}-%{v
 Source99:       baselibs.conf
 # PATFH-FIX-OPENSUSE gnome-desktop-switch-Japanese-default-input-to-mozc.patch bnc#1029083 boo#1056289 qzhao@suse.com -- Switch new user's default input engine from "anthy" to "mozc" in gnome-desktop with Japanese language and ibus input frame-work condition.
 Patch1:         gnome-desktop-switch-Japanese-default-input-to-mozc.patch
+# PATCH-FIX-UPSTREAM gnome-desktop-plug-memory-leak.patch bgo#793878 -- bg-slide-show: Plug a memory leak
+Patch2:         gnome-desktop-plug-memory-leak.patch
 BuildRequires:  fdupes
 BuildRequires:  gobject-introspection-devel
 BuildRequires:  intltool
@@ -127,6 +129,7 @@ reasons.
 %prep
 %setup -q
 %patch1 -p1
+%patch2 -p1
 translation-update-upstream
 
 %if 0%{?BUILD_FROM_VCS}