diff --git a/meson.build b/meson.build
index f7a610af3b..e394ee5eee 100644
--- a/meson.build
+++ b/meson.build
@@ -83,7 +83,7 @@ polkitpkladir = join_paths(localstatedir, 'lib/polkit-1/localauthority/10-vendor
 varlogdir = join_paths(localstatedir, 'log')
 xinitrcdir = join_paths(sysconfdir, 'X11/xinit/xinitrc.d')
 rpmmacrosdir = get_option('rpmmacrosdir')
-modprobedir = join_paths(prefixdir, 'lib/modprobe.d')
+modprobedir = join_paths(rootprefixdir, 'lib/modprobe.d')
 
 # Our own paths
 pkgdatadir = join_paths(datadir, 'systemd')