1 files changed, 1 insertions, 1 deletions
diff --git a/internal.h b/internal.h
index fe52a96c73..0dd93d9860 100644
--- a/internal.h
+++ b/internal.h
@@ -48,7 +48,7 @@ struct vtm; /* defined by timev.h */
 VALUE rb_ary_last(int, VALUE *, VALUE);
 void rb_ary_set_len(VALUE, long);
 VALUE rb_ary_cat(VALUE, const VALUE *, long);
-VALUE rb_ary_delete_same_obj(VALUE, VALUE);
+void rb_ary_delete_same(VALUE, VALUE);
 
 /* bignum.c */
 VALUE rb_big_fdiv(VALUE x, VALUE y);