diff --git a/doc/man/timew.1.in b/doc/man/timew.1.in
index e5cceda9..64c8b491 100644
--- a/doc/man/timew.1.in
+++ b/doc/man/timew.1.in
@@ -311,6 +311,11 @@ Determines whether diagnostic debugging information is shown.
 Useful for troubleshooting, but not for general use.
 Default value is 'off'.
 
+.TP
+.B debug.indicator = >>
+The debug output prefix string.
+Default value is '>>'.
+
 .TP
 .B reports.<type>.24h = off
 .br