diff --git a/share/man/man4/tcp.4 b/share/man/man4/tcp.4
--- a/share/man/man4/tcp.4
+++ b/share/man/man4/tcp.4
@@ -776,7 +776,7 @@
 .It Va path_mtu_discovery
 Enable Path MTU Discovery.
 .It Va pcbcount
-Number of active process control blocks
+Number of active protocol control blocks
 (read-only).
 .It Va perconn_stats_enable
 Controls the default collection of statistics for all connections using the