diff --git a/top/top.1 b/top/top.1
index be348666..8fbf157c 100644
--- a/top/top.1
+++ b/top/top.1
@@ -62,7 +62,7 @@
 .
 .\" Document /////////////////////////////////////////////////////////////
 .\" ----------------------------------------------------------------------
-.TH TOP 1 "July 2020" "procps-ng" "User Commands"
+.TH TOP 1 "September 2020" "procps-ng" "User Commands"
 .\" ----------------------------------------------------------------------
 .nh
 
@@ -521,8 +521,9 @@ an abbreviated summary is shown consisting of these elements:
 
 .fi
 
-Where: a) is the combined \fBus\fR and \fBni\fR percentage; b) is the \fBsy\fR percentage; c) is the total;
-and d) is one of two visual graphs of those representations.
+Where: a) is the `user' (us + ni) percentage; b) is the `system'
+(sy + hi + si) percentage; c) is the total; and d) is one of two
+visual graphs of those representations.
 \*(XT 4b. SUMMARY AREA Commands and the `t' command for additional information
 on that special 4-way toggle.