diff --git a/man2/getsid.2 b/man2/getsid.2
index 3c61e57b0..b830798f6 100644
--- a/man2/getsid.2
+++ b/man2/getsid.2
@@ -30,9 +30,9 @@ getsid \- get session ID
 .sp
 .BI "pid_t getsid(pid_t" " pid" );
 .SH DESCRIPTION
-.B getsid(0)
+.I getsid(0)
 returns the session ID of the calling process.
-.BI getsid( p )
+.I getsid(p)
 returns the session ID of the process with process ID
 .IR p .
 (The session ID of a process is the process group ID of the
diff --git a/man2/ptrace.2 b/man2/ptrace.2
index 6355bbaed..941d94887 100644
--- a/man2/ptrace.2
+++ b/man2/ptrace.2
@@ -187,7 +187,7 @@ are interpreted according to the prototype given, GNU libc currently declares
 as a variadic function with only the \fIrequest\fP argument fixed.  This means
 that unneeded trailing arguments may be omitted, though doing so makes use of
 undocumented
-.B gcc(1)
+.BR gcc (1)
 behavior.
 .LP
 .BR init (8),
diff --git a/man7/arp.7 b/man7/arp.7
index c1b95ce1d..de49b382f 100644
--- a/man7/arp.7
+++ b/man7/arp.7
@@ -24,7 +24,7 @@ sockets.  There is also a mechanism for managing the ARP cache
 in user-space by using
 .BR netlink (7)
 sockets. The ARP table can also be controlled via 
-.B ioctl (2) 
+.BR ioctl (2) 
 on any 
 .B PF_INET 
 socket.