diff --git a/udftools.spec b/udftools.spec
index ba5da86..f9a5832 100644
--- a/udftools.spec
+++ b/udftools.spec
@@ -1,7 +1,7 @@
 Summary: Linux UDF Filesystem userspace utilities
 Name: udftools
 Version: 1.0.0b3
-Release: 28%{?dist}
+Release: 29%{?dist}
 License: GPLv2+
 Group: Applications/Archiving
 URL: http://sourceforge.net/projects/linux-udf/
@@ -41,7 +41,7 @@ Linux UDF Filesystem userspace utilities.
 
 %build
 ./bootstrap
-export CFLAGS="$RPM_OPT_FLAGS -fno-strict-aliasing"
+export CFLAGS="$RPM_OPT_FLAGS -fno-strict-aliasing --std=gnu89"
 %configure
 %{__make} %{?_smp_mflags}
 
@@ -63,6 +63,9 @@ rm -rf %{buildroot}%{_bindir}/udffsck
 
 
 %changelog
+* Fri Feb 20 2015 Frantisek Kluknavsky <fkluknav@redhat.com> - 1.0.0b3-29
+- FTBFS fixed, --std=gnu89 is no longer default with gcc-5
+
 * Mon Aug 18 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.0.0b3-28
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild