diff --git a/man2/futex.2 b/man2/futex.2
index 4ac08991a..1e5091b88 100644
--- a/man2/futex.2
+++ b/man2/futex.2
@@ -1076,7 +1076,7 @@ was not less than 1000,000,000).
 .TP
 .B EINVAL
 The operation specified in
-.BR futex_op
+.IR futex_op
 employs one or both of the pointers
 .I uaddr
 and