diff --git a/man7/tcp.7 b/man7/tcp.7
index 7402590e7..8fc89cfdb 100644
--- a/man7/tcp.7
+++ b/man7/tcp.7
@@ -270,7 +270,7 @@ implies that no amount is reserved.
 .\"
 .\" The following is from 2.6.28-rc4: Documentation/networking/ip-sysctl.txt
 .TP
-.IR tcp_base_mss "(Integer; default: 512; since Linux 2.6.17)
+.IR tcp_base_mss " (Integer; default: 512; since Linux 2.6.17)
 The initial value of
 .I search_low
 to be used by the packetization layer