diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index 3563d88..6b7c822 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -1,4 +1,4 @@
-*index.txt*     For Vim version 8.1.  Last change: 2019 Sep 02
+*index.txt*     For Vim version 8.1.  Last change: 2019 Sep 27
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -73,14 +73,14 @@
 				the cursor
 |i_CTRL-Q|	CTRL-Q		same as CTRL-V, unless used for terminal
 				control flow
-|i_CTRL-R|	CTRL-R {0-9a-z"%#*:=}
+|i_CTRL-R|	CTRL-R {register}
 				insert the contents of a register
-|i_CTRL-R_CTRL-R| CTRL-R CTRL-R {0-9a-z"%#*:=}
+|i_CTRL-R_CTRL-R| CTRL-R CTRL-R {register}
 				insert the contents of a register literally
-|i_CTRL-R_CTRL-O| CTRL-R CTRL-O {0-9a-z"%#*:=}
+|i_CTRL-R_CTRL-O| CTRL-R CTRL-O {register}
 				insert the contents of a register literally
 				and don't auto-indent
-|i_CTRL-R_CTRL-P| CTRL-R CTRL-P {0-9a-z"%#*:=}
+|i_CTRL-R_CTRL-P| CTRL-R CTRL-P {register}
 				insert the contents of a register literally
 				and fix indent.
 		CTRL-S		(used for terminal control flow)