diff --git a/src/emacs/lean-syntax.el b/src/emacs/lean-syntax.el
index 4463a052c9..f0ebb2b5b4 100644
--- a/src/emacs/lean-syntax.el
+++ b/src/emacs/lean-syntax.el
@@ -122,7 +122,8 @@
      ;; tactics
      (,(rx (not (any "\.")) word-start
            (or "\\b.*_tac" "Cond" "or_else" "then" "try" "when" "assumption" "eassumption" "rapply" "apply" "rename" "intro" "intros"
-               "generalize" "generalizes" "back" "beta" "done" "exact" "repeat" "whnf" "rotate" "rotate_left" "rotate_right")
+               "generalize" "generalizes" "clear" "clears" "revert" "reverts" "back" "beta" "done" "exact" "repeat"
+               "whnf" "rotate" "rotate_left" "rotate_right")
            word-end)
       . 'font-lock-constant-face)
      ;; Types