diff --git a/vars/pkgconf_host.vars b/vars/pkgconf_host.vars
index 386c3c1..0f34590 100644
--- a/vars/pkgconf_host.vars
+++ b/vars/pkgconf_host.vars
@@ -11,7 +11,7 @@ pkg_pkgconf_host_install_make_post() {
 if [ -z "\${PREFIX_NATIVE}" ]; then
 	PREFIX_NATIVE="${PREFIX_NATIVE}";
 fi;
-"\$(dirname "\${0}")"/pkgconf --define-variable=prefix="\${PREFIX_NATIVE%/}/" "\${@}";
+"\$(dirname "\${0}")"/pkgconf --define-variable=prefix="\${PREFIX_NATIVE%/}/" --keep-system-cflags "\${@}";
 EOF
 	chmod +x "${PKG_DESTDIR}/bin/${PKG_TARGET}-pkg-config";
 	ex_rtl_fileop rm "${PKG_DESTDIR}/bin/pkg-config";