diff --git a/0001-extern-cqueue__poll.patch b/0001-extern-cqueue__poll.patch
new file mode 100644
index 0000000..3a39e7c
--- /dev/null
+++ b/0001-extern-cqueue__poll.patch
@@ -0,0 +1,25 @@
+From 6e84cef16081ba3aff2f7f5e6706b15fa4364db0 Mon Sep 17 00:00:00 2001
+From: Tomas Krizek <tomas.krizek@nic.cz>
+Date: Wed, 5 Feb 2020 17:45:51 +0100
+Subject: [PATCH] extern cqueue__poll
+
+---
+ src/cqueues.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cqueues.h b/src/cqueues.h
+index a290135..ef803ea 100644
+--- a/src/cqueues.h
++++ b/src/cqueues.h
+@@ -135,7 +135,7 @@
+ 
+ #define CQUEUE__POLL CQS_UNIQUE_LIGHTUSERDATA_MASK(&cqueue__poll)
+ 
+-const char *cqueue__poll; // signals multilevel yield
++extern const char *cqueue__poll; // signals multilevel yield
+ 
+ cqs_nargs_t luaopen__cqueues(lua_State *);
+ 
+-- 
+2.25.0
+
diff --git a/lua-cqueues.spec b/lua-cqueues.spec
index 5997f7a..3aa960b 100644
--- a/lua-cqueues.spec
+++ b/lua-cqueues.spec
@@ -10,12 +10,13 @@
 
 Name:           lua-%{luapkgname}
 Version:        20190813
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Stackable Continuation Queues for the Lua Programming Language
 
 License:        MIT
 URL:            https://github.com/wahern/%{luapkgname}
 Source0:        https://github.com/wahern/%{luapkgname}/archive/rel-%{version}/%{name}-%{version}.tar.gz
+Patch1:         0001-extern-cqueue__poll.patch
 
 BuildRequires:  gcc
 BuildRequires:  m4
@@ -80,6 +81,7 @@ for the Lua Programming Language
 
 %prep
 %setup -q -n %{luapkgname}-rel-%{version}
+%patch1 -p1
 
 %build
 export CFLAGS="%{?optflags} -fPIC"
@@ -125,6 +127,9 @@ sed -i '1 s|^#!/.*$|#!/usr/bin/lua|' %{buildroot}%{_pkgdocdir}/examples/*
 %license LICENSE
 
 %changelog
+* Wed Feb 05 2020 Tomas Krizek <tomas.krizek@nic.cz> - 20190813-3
+- Add patch to mark cqueues__poll as extern
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 20190813-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild