diff --git a/q2a_usercheck.sh b/q2a_usercheck.sh
index 031f6ad..6048be4 100755
--- a/q2a_usercheck.sh
+++ b/q2a_usercheck.sh
@@ -2,7 +2,11 @@
 
 logf='/var/log/nginx/access.log'
 cache='/tmp/forumspam_cache'
-tail_opts='-F' # set to `-f` on OpenBSD!
+
+case `uname` in
+    (*"BSD"*) tail_opts='-f';;
+    (*) tail_opts='-F';;
+esac
 
 test -f $cache || install -m 600 /dev/null $cache