diff --git a/mount/netbsd-lib.pl b/mount/netbsd-lib.pl
index a098318c7..c8c8711b9 100755
--- a/mount/netbsd-lib.pl
+++ b/mount/netbsd-lib.pl
@@ -128,7 +128,7 @@ sub list_mounted
 {
 # get the list of mounted filesystems
 local(@rv, $_);
-local $cmd = $uname_release =~ /^3\.[0-9]/ ? "netbsd-mounts-3" :
+local $cmd = $uname_release =~ /^[345]\.[0-9]/ ? "netbsd-mounts-3" :
 	     $uname_release =~ /^2\.[0-9]/ ? "netbsd-mounts-2" :
 					     "netbsd-mounts";
 &compile_program($cmd);