diff --git a/man2/flock.2 b/man2/flock.2
index c0df39f50..a7a78d4a5 100644
--- a/man2/flock.2
+++ b/man2/flock.2
@@ -35,7 +35,7 @@ flock \- apply or remove an advisory lock on an open file
 .SH SYNOPSIS
 .B #include <sys/file.h>
 .sp
-.BR "int flock(int " fd ", int " operation );
+.BI "int flock(int " fd ", int " operation );
 .SH DESCRIPTION
 Apply or remove an advisory lock on the open file specified by
 .IR fd .