diff --git a/README.md b/README.md
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+++ b/README.md
@@ -234,7 +234,7 @@ Keybinding | Description
C-c G | Search in GitHub for the thing under point (or an interactive query).
C-c y | Search in YouTube for the thing under point (or an interactive query).
C-S-RET or M-o | Insert an empty line above the current line and indent it properly
-S-RET or Super-O | Insert an empty line and indent it properly (as in most IDEs).
+S-RET or M-O or Super-o | Insert an empty line and indent it properly (as in most IDEs).
C-S-up or M-S-up | Move the current line or region up.
C-S-down or M-S-down| Move the current line or region down.
C-c n | Fix indentation in buffer and strip whitespace.