diff --git a/libvpx.spec b/libvpx.spec
index b77af4f..1b75795 100644
--- a/libvpx.spec
+++ b/libvpx.spec
@@ -6,7 +6,7 @@
 Name:			libvpx
 Summary:		VP8/VP9 Video Codec SDK
 Version:		1.8.0
-Release:		3%{?dist}
+Release:		4%{?dist}
 License:		BSD
 #Source0:		http://downloads.webmproject.org/releases/webm/%{name}-%{version}.tar.bz2
 Source0:		https://github.com/webmproject/libvpx/archive/v%{version}.tar.gz
@@ -79,10 +79,7 @@ and decoder.
 %global	generic_target 0
 %endif
 
-# only found in Fedora 28+
-%if 0%{?fedora} >= 28
 %set_build_flags
-%endif
 
 %ifarch armv7hl
 CROSS=armv7hl-redhat-linux-gnueabi- CHOST=armv7hl-redhat-linux-gnueabi-hardfloat ./configure \
@@ -102,11 +99,6 @@ CROSS=armv7hl-redhat-linux-gnueabi- CHOST=armv7hl-redhat-linux-gnueabi-hardfloat
 --enable-install-srcs \
 --prefix=%{_prefix} --libdir=%{_libdir} --size-limit=16384x16384
 
-# Hack our optflags in.
-sed -i "s|-O3|%{optflags}|g" libs-%{vpxtarget}.mk
-sed -i "s|-O3|%{optflags}|g" examples-%{vpxtarget}.mk
-sed -i "s|-O3|%{optflags}|g" docs-%{vpxtarget}.mk
-
 %ifarch armv7hl
 #hackety hack hack
 sed -i "s|AR=armv7hl-redhat-linux-gnueabi-ar|AR=ar|g" libs-%{vpxtarget}.mk
@@ -239,6 +231,9 @@ rm -rf %{buildroot}%{_prefix}/src
 %{_bindir}/*
 
 %changelog
+* Tue Feb 05 2019 Pete Walter <pwalter@fedoraproject.org> - 1.8.0-4
+- Avoid setting optflags twice
+
 * Tue Feb 05 2019 Pete Walter <pwalter@fedoraproject.org> - 1.8.0-3
 - Tighten soname glob to avoid accidental soname bumps