diff --git a/man2/quotactl.2 b/man2/quotactl.2
index 793cd12b3..70f266fcc 100644
--- a/man2/quotactl.2
+++ b/man2/quotactl.2
@@ -87,7 +87,7 @@ The
 .I subcmd
 value is one of the following:
 .TP 8
-.SB Q_QUOTAON
+.B Q_QUOTAON
 Turn on quotas for a file system.
 The
 .I id