diff --git a/perl-5.26.0-perl-131263-clear-the-UTF8-flag-on-a-glob-if-it-isn-.patch b/perl-5.26.0-perl-131263-clear-the-UTF8-flag-on-a-glob-if-it-isn-.patch
new file mode 100644
index 0000000..0ba657a
--- /dev/null
+++ b/perl-5.26.0-perl-131263-clear-the-UTF8-flag-on-a-glob-if-it-isn-.patch
@@ -0,0 +1,72 @@
+From 7b3e03bd309fcc48a135123a60678ae2596b1c38 Mon Sep 17 00:00:00 2001
+From: Tony Cook <tony@develop-help.com>
+Date: Wed, 7 Jun 2017 15:00:26 +1000
+Subject: [PATCH] clear the UTF8 flag on a glob if it isn't UTF8
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Ported to 5.26.0:
+
+commit 1097da16b21fe0a2257dba9937e55c0cca18f7e1
+Author: Tony Cook <tony@develop-help.com>
+Date:   Wed Jun 7 15:00:26 2017 +1000
+
+    [perl #131263] clear the UTF8 flag on a glob if it isn't UTF8
+
+    Previously sv_2pv_flags() would set the UTF8 flag on a glob if it
+    had a UTF8 name, but wouldn't clear tha flag if it didn't.
+
+    This meant a name change, eg. if assigned another glob, from a UTF8
+    name to a non-UTF8 name would leave the flag set.
+
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ sv.c      |  2 ++
+ t/op/gv.t | 10 +++++++++-
+ 2 files changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/sv.c b/sv.c
+index 9f3e28e..ae3dc95 100644
+--- a/sv.c
++++ b/sv.c
+@@ -3179,6 +3179,8 @@ Perl_sv_2pv_flags(pTHX_ SV *const sv, STRLEN *const lp, const I32 flags)
+ 	assert(SvPOK(buffer));
+ 	if (SvUTF8(buffer))
+ 	    SvUTF8_on(sv);
++        else
++            SvUTF8_off(sv);
+ 	if (lp)
+ 	    *lp = SvCUR(buffer);
+ 	return SvPVX(buffer);
+diff --git a/t/op/gv.t b/t/op/gv.t
+index 4fe6b00..670ccf6 100644
+--- a/t/op/gv.t
++++ b/t/op/gv.t
+@@ -12,7 +12,7 @@ BEGIN {
+ 
+ use warnings;
+ 
+-plan(tests => 280);
++plan(tests => 282);
+ 
+ # type coercion on assignment
+ $foo = 'foo';
+@@ -1170,6 +1170,14 @@ SKIP: {
+     is ($? & 127, 0,"[perl #128597] No crash when gp_free calls ckWARN_d");
+ }
+ 
++{
++    # [perl #131263]
++    *sym = "\N{U+0080}";
++    ok(*sym eq "*main::\N{U+0080}", "utf8 flag properly set");
++    *sym = "\xC3\x80";
++    ok(*sym eq "*main::\xC3\x80", "utf8 flag properly cleared");
++}
++
+ # test gv_try_downgrade()
+ # If a GV can be stored in a stash in a compact, non-GV form, then
+ # whenever ops are freed which reference the GV, an attempt is made to
+-- 
+2.9.4
+
diff --git a/perl.spec b/perl.spec
index 81f135d..8158046 100644
--- a/perl.spec
+++ b/perl.spec
@@ -154,6 +154,10 @@ Patch33:        perl-5.27.0-Fix-131190-UTF8-code-improperly-casting-negative-int
 Patch34:        perl-5.27.0-perl-131221-improve-duplication-of-via-handles.patch
 Patch35:        perl-5.27.0-perl-131221-sv_dup-sv_dup_inc-are-only-available-und.patch
 
+# Fix glob UTF-8 flag on a glob reassignment, RT#131263,
+# in upstream after 5.27.0
+Patch36:        perl-5.26.0-perl-131263-clear-the-UTF8-flag-on-a-glob-if-it-isn-.patch
+
 # Link XS modules to libperl.so with EU::CBuilder on Linux, bug #960048
 Patch200:       perl-5.16.3-Link-XS-modules-to-libperl.so-with-EU-CBuilder-on-Li.patch
 
@@ -2807,6 +2811,7 @@ Perl extension for Version Objects
 %patch33 -p1
 %patch34 -p1
 %patch35 -p1
+%patch36 -p1
 %patch200 -p1
 %patch201 -p1
 
@@ -2831,6 +2836,7 @@ perl -x patchlevel.h \
     'Fedora Patch32: Fix a crash when calling a subroutine from a stash (RT#131085)' \
     'Fedora Patch33: Fix an improper cast of a negative integer to an unsigned 8-bit type (RT#131190)' \
     'Fedora Patch34: Fix cloning :via handles on thread creation (RT#131221)' \
+    'Fedora Patch36: Fix glob UTF-8 flag on a glob reassignment (RT#131263)' \
     'Fedora Patch200: Link XS modules to libperl.so with EU::CBuilder on Linux' \
     'Fedora Patch201: Link XS modules to libperl.so with EU::MM on Linux' \
     %{nil}
@@ -5118,6 +5124,7 @@ popd
 - Fix a crash when calling a subroutine from a stash (RT#131085)
 - Fix an improper cast of a negative integer to an unsigned 8-bit type (RT#131190)
 - Fix cloning :via handles on thread creation (RT#131221)
+- Fix glob UTF-8 flag on a glob reassignment (RT#131263)
 
 * Tue Jun 06 2017 Jitka Plesnikova <jplesnik@redhat.com> - 4:5.26.0-393
 - Stop providing old perl(MODULE_COMPAT_5.24.*)