diff --git a/xlockmore.spec b/xlockmore.spec
index 9b381d1..09d7f66 100644
--- a/xlockmore.spec
+++ b/xlockmore.spec
@@ -1,7 +1,7 @@
 Summary: Screen lock and screen saver
 Name: xlockmore
 Version: 5.43
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: BSD
 Group: Amusements/Graphics
 URL: http://www.tux.org/~bagleyd/xlockmore.html
@@ -41,7 +41,7 @@ GTK based frontend for xlockmore.
 %setup -q
 %patch0
 
-%{__sed} -i -e "s,/lib,/%{_lib},g" configure
+%{__sed} -i -e "s,/lib,/%{_lib},g;s,-Wno-format,,g;" configure
 
 %build
 %configure --with-crypt --enable-pam --enable-syslog --disable-setuid
@@ -104,6 +104,9 @@ desktop-file-install \
 %{_bindir}/xglock
 
 %changelog
+* Thu Dec 05 2013 Adrian Reber <adrian@lisas.de> - 5.43-3
+- fixed "xlockmore FTBFS if "-Werror=format-security" flag is used" (#1037397)
+
 * Sun Aug 04 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 5.43-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild