diff --git a/hermes.1 b/hermes.1
index 36af307..88da4f9 100644
--- a/hermes.1
+++ b/hermes.1
@@ -81,6 +81,10 @@ O
 Add a row above the current row and enter input mode with the cursor on the new row.
 .TP
 .B
+r
+Replace the character under the cursor with the next character typed.
+.TP
+.B
 <Ctrl-q>
 Quit \fBhermes\fP.
 .TP