diff --git a/glib-commit-b972018.patch b/glib-commit-b972018.patch
new file mode 100644
index 0000000..5914926
--- /dev/null
+++ b/glib-commit-b972018.patch
@@ -0,0 +1,24 @@
+From b972018d6c252c4afb1375e5c4e9910e79af2e70 Mon Sep 17 00:00:00 2001
+From: Marc-André Lureau <marcandre.lureau@gmail.com>
+Date: Mon, 15 Apr 2013 16:12:50 +0000
+Subject: win32: add back missing _utf8 symbols on x64 builds
+
+The _utf8 functions have been wrongly removed from GLib on x64.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=697879
+---
+diff --git a/glib/gutils.c b/glib/gutils.c
+index 76f6c34..0de954e 100644
+--- a/glib/gutils.c
++++ b/glib/gutils.c
+@@ -2354,7 +2354,7 @@ g_format_size_for_display (goffset size)
+     }
+ }
+ 
+-#if defined (G_OS_WIN32) && !defined (_WIN64)
++#if defined (G_OS_WIN32)
+ 
+ /* Binary compatibility versions. Not for newly compiled code. */
+ 
+--
+cgit v0.9.1
diff --git a/mingw-glib2.spec b/mingw-glib2.spec
index bb75e96..7706e3a 100644
--- a/mingw-glib2.spec
+++ b/mingw-glib2.spec
@@ -2,7 +2,7 @@
 
 Name:           mingw-glib2
 Version:        2.36.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        MinGW Windows GLib2 library
 
 License:        LGPLv2+
@@ -54,6 +54,13 @@ Patch4:         glib-formatstring.patch
 # http://lists.fedoraproject.org/pipermail/fedora-mingw/2013-March/006429.html
 Patch5:         glib-prefer-constructors-over-DllMain.patch
 
+# Revert unintented ABI break on win64
+# https://bugzilla.redhat.com/show_bug.cgi?id=951588
+# https://bugzilla.gnome.org/show_bug.cgi?id=697879
+# Upstream commit b972018d6c252c4afb1375e5c4e9910e79af2e70
+Patch6:         glib-commit-b972018.patch
+
+
 %description
 MinGW Windows Glib2 library.
 
@@ -99,6 +106,7 @@ Static version of the MinGW Windows GLib2 library.
 %patch3 -p0
 %patch4 -p0
 %patch5 -p0
+%patch6 -p1
 
 
 %build
@@ -277,6 +285,9 @@ find $RPM_BUILD_ROOT -name "*.la" -delete
 
 
 %changelog
+* Mon Apr 15 2013 Erik van Pienbroek <epienbro@fedoraproject.org> - 2.36.0-3
+- Revert unintended ABI break on win64 (RHBZ #951588, GNOME BZ #697879)
+
 * Fri Mar 29 2013 Kalev Lember <kalevlember@gmail.com> - 2.36.0-2
 - Drop two patches that have been fixed upstream