diff --git a/man3/getaddrinfo.3 b/man3/getaddrinfo.3
index 455318c81..b28a84c54 100644
--- a/man3/getaddrinfo.3
+++ b/man3/getaddrinfo.3
@@ -212,7 +212,7 @@ that intend to accept connections on any of the hosts's network addresses.
 If
 .I node
 is not NULL, then the
-AI_PASSIVE
+.B AI_PASSIVE
 flag is ignored.
 .PP
 If the