diff --git a/SPECS/oniguruma.spec b/SPECS/oniguruma.spec
index b66a471..2bfd023 100644
--- a/SPECS/oniguruma.spec
+++ b/SPECS/oniguruma.spec
@@ -8,7 +8,7 @@
 
 Name:		oniguruma
 Version:	%{mainver}
-Release:	%{?prerelease:0.}%{fedorarel}%{?betaver:.%betaver}%{?dist}.4
+Release:	%{?prerelease:0.}%{fedorarel}%{?betaver:.%betaver}%{?dist}.5
 Summary:	Regular expressions library
 
 License:	BSD
@@ -43,7 +43,7 @@ developing applications that use %{name}.
 # This package fails its testsuite when compiled with LTO, but the real problem
 # is that it ends up mixing and matching regexp bits between itself and glibc.
 # Disable LTO
-%define _lto_cflags %{nil}
+#%%define _lto_cflags %%{nil}
 
 %configure \
 	--enable-posix-api \
@@ -101,6 +101,10 @@ find $RPM_BUILD_ROOT -name '*.la' \
 %{_libdir}/pkgconfig/%{name}.pc
 
 %changelog
+* Thu Dec 09 2021 Jiri Kucera <jkucera@redhat.com> - 6.9.6-1.5
+- Enable LTO
+  Resolves: #1990100
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 6.9.6-1.4
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688