diff --git a/NEWS b/NEWS
index 80e3523a..4a10be67 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,7 @@ procps-ng-NEXT
   * ps: Add PSS and USS fields                             issue #112
   * slabtop: Don't combine d and o options                 issue #160
   * top: exploit some library smaps_rollup provisions      issue #112
+  * top: added four new IO accounting fields               issue #184
 
 procps-ng-3.3.17
 ---------------
diff --git a/top/top.1 b/top/top.1
index f1b76106..91b42600 100644
--- a/top/top.1
+++ b/top/top.1
@@ -1039,6 +1039,8 @@ Running tasks will display a dash (`\-') in this column.
 55.\fB ioR \*(Em I/O Bytes Read \fR
 The number of bytes a process caused to be fetched from the storage layer.
 
+Root privileges are required to display `io' data for other users.
+
 .TP 4
 56.\fB ioRop \*(Em I/O Read Operations \fR
 The number of read I/O operations (syscalls) for a process.