diff --git a/sane-backends.spec b/sane-backends.spec
index 728e8ac..78845a6 100644
--- a/sane-backends.spec
+++ b/sane-backends.spec
@@ -10,10 +10,12 @@
 %endif
 
 %if !0%{?fedora}%{?rhel} || 0%{?fedora} >= 17 || 0%{?rhel} >= 7
-%global udevrulesdir %{_prefix}/lib/udev/rules.d
+%global udevdir %{_prefix}/lib/udev
 %else
-%global udevrulesdir /lib/udev/rules.d
+%global udevdir /lib/udev
 %endif
+%global udevrulesdir %{udevdir}/rules.d
+%global udevhwdbdir %{udevdir}/hwdb.d
 
 %if !0%{?fedora}%{?rhel} || 0%{?fedora} >= 18 || 0%{?rhel} >= 7
 %global libusb1 1
@@ -69,12 +71,7 @@ BuildRequires: libtiff-devel
 BuildRequires: libv4l-devel
 BuildRequires: gettext
 BuildRequires: gphoto2-devel
-# from Fedora 18 on, udev is merged with systemd
-%if !0%{?fedora}%{?rhel} || 0%{?fedora} >= 18 || 0%{?rhel} >= 7
-Requires: systemd >= 183
-%else
-Requires: udev >= 143
-%endif
+Requires: systemd >= 196
 Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
 # Don't drag around obsoletes forever
 %if 0%{?fedora}%{?rhel} && (0%{?fedora} < 25 || 0%{?rhel} < 8)
@@ -190,10 +187,12 @@ LDFLAGS="-pie"
     --enable-pthread
 make %{?_smp_mflags}
 
-# Ensure ACL style udev rules
+# Write udev/hwdb files
 _topdir="$PWD"
 pushd tools
-./sane-desc -m udev+acl -s "${_topdir}/doc/descriptions:${_topdir}/doc/descriptions-external" -d0 > udev/libsane.rules
+./sane-desc -m udev+hwdb -s "${_topdir}/doc/descriptions:${_topdir}/doc/descriptions-external" -d0 > udev/sane-backends.rules
+./sane-desc -m hwdb -s "${_topdir}/doc/descriptions:${_topdir}/doc/descriptions-external" -d0 > udev/sane-backends.hwdb
+
 popd
 
 %install
@@ -207,7 +206,9 @@ rm -f %{buildroot}%{_libdir}/sane/*.a %{buildroot}%{_libdir}/*.a
 rm -f %{buildroot}%{_libdir}/libsane*.la %{buildroot}%{_libdir}/sane/*.la
 
 mkdir -p %{buildroot}%{udevrulesdir}
-install -m 0644 tools/udev/libsane.rules %{buildroot}%{udevrulesdir}/65-libsane.rules
+mkdir -p %{buildroot}%{udevhwdbdir}
+install -m 0644 tools/udev/sane-backends.rules %{buildroot}%{udevrulesdir}/65-sane-backends.rules
+install -m 0644 tools/udev/sane-backends.hwdb %{buildroot}%{udevhwdbdir}/20-sane-backends.hwdb
 
 mkdir -p %{buildroot}%{_libdir}/pkgconfig
 install -m 0644 tools/sane-backends.pc %{buildroot}%{_libdir}/pkgconfig/
@@ -243,7 +244,8 @@ popd
 %dir /etc/sane.d
 %dir /etc/sane.d/dll.d
 %config(noreplace) /etc/sane.d/*.conf
-%{udevrulesdir}/65-libsane.rules
+%{udevrulesdir}/65-sane-backends.rules
+%{udevhwdbdir}/20-sane-backends.hwdb
 %{_datadir}/pixmaps/sane.png
 
 %{_bindir}/sane-find-scanner
@@ -285,6 +287,7 @@ popd
 - version 1.0.24
 - use (hopefully stable) Alioth download URL
 - update udev patch, remove obsolete patches
+- use udev uwdb instead of huge rulesets
 
 * Mon Sep 09 2013 Nils Philippsen <nils@redhat.com> - 1.0.23-18
 - build against libusb-1.0 on Fedora >= 18 (#1003193)