diff --git a/top/top.1 b/top/top.1
index 64a6a36a..87659bed 100644
--- a/top/top.1
+++ b/top/top.1
@@ -1270,6 +1270,11 @@ The sort field might\fI not\fR be visible because:
     1) there is insufficient\fI Screen Width \fR
     2) the 'f' \*(CI turned it \*F
 
+\*(NT Whenever 'Searching' and/or 'Other Filtering' is active in a window,
+column highlighting is temporarily disabled.
+\*(XC notes at the end of topics 5d. SEARCHING and 5e. FILTERING for an
+explanation why.
+
 .TP 7
 \ \ \ \fBy\fR\ \ :\fIRow-Highlight\fR toggle \fR
 Changes highlighting for "running" tasks.