diff --git a/lisp/init-ediff.el b/lisp/init-ediff.el
index 15269d2..3b5d791 100644
--- a/lisp/init-ediff.el
+++ b/lisp/init-ediff.el
@@ -51,7 +51,7 @@
 _n_: next conflict        _u_: keep upper             _s_: swap
 _p_: revious conflict     _l_: keep lower             _h_: highlight
 _e_: Ediff                _b_: keep base              _r_: resolve
-_q_: quit                 _c_: keep hunk@point        _?_: menu
+_q_: quit                 _c_: keep hunk@point        _R_: revert
 
 ^^--------------------------------------------------------------
 Reach this hydra with <C-x m>
@@ -68,6 +68,7 @@ Reach this hydra with <C-x m>
     ("h"  smerge-refine       nil)
     ("s"  smerge-swap         nil)
     ("r"  smerge-resolve      nil)
+    ("R"  undo-tree-undo      nil)
     ("?"  smerge-popup-context-menu      nil)
     ("e"  smerge-ediff        nil :color blue)
     ("q"  nil                 nil :color blue))