diff --git a/doc/man/man5/slapd-shell.5 b/doc/man/man5/slapd-shell.5
index 70f479d1d0..3f74d6999d 100644
--- a/doc/man/man5/slapd-shell.5
+++ b/doc/man/man5/slapd-shell.5
@@ -150,7 +150,7 @@ The shell backend does not support threaded environments.
 When using the shell backend, 
 .BR slapd (8)
 should be built
-.IR --without-thread .
+.IR --without-threads .
 .SH FILES
 .TP
 ETCDIR/slapd.conf