diff --git a/docs/books/admin_guide/05-vi.md b/docs/books/admin_guide/05-vi.md
index b92fabfb86..ee52613359 100644
--- a/docs/books/admin_guide/05-vi.md
+++ b/docs/books/admin_guide/05-vi.md
@@ -355,7 +355,7 @@ These operations are done in *command* mode.
 
 * Cancel a cancellation
 
-<kbd>Ctrl+R</kbd>
+<kbd>Ctrl+r</kbd>
 
 ## EX commands