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-rw-r--r--ext/readline/readline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/readline/readline.c b/ext/readline/readline.c
index 10ff0cbacd..47df49ed1c 100644
--- a/ext/readline/readline.c
+++ b/ext/readline/readline.c
@@ -1756,7 +1756,7 @@ rb_remove_history(int index)
#else
rb_notimplement();
- UNREACHABLE;
+ UNREACHABLE_RETURN(Qnil);
#endif
}