diff --git a/Lib/_pyrepl/historical_reader.py b/Lib/_pyrepl/historical_reader.py
index c4b95fa2e81ee6..5cc82690ae36fc 100644
--- a/Lib/_pyrepl/historical_reader.py
+++ b/Lib/_pyrepl/historical_reader.py
@@ -241,7 +241,6 @@ def __post_init__(self) -> None:
             isearch_end,
             isearch_add_character,
             isearch_cancel,
-            isearch_add_character,
             isearch_backspace,
             isearch_forwards,
             isearch_backwards,