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-rw-r--r--src/enum.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/enum.c b/src/enum.c
index 1e9445176..d31370188 100644
--- a/src/enum.c
+++ b/src/enum.c
@@ -26,5 +26,5 @@ mrb_init_enumerable(mrb_state *mrb)
{
struct RClass *enumerable;
enumerable = mrb_define_module(mrb, "Enumerable"); /* 15.3.2 */
- mrb_define_module_function(mrb, enumerable, "__update_hash", enum_update_hash, MRB_ARGS_REQ(1));
+ mrb_define_module_function(mrb, enumerable, "__update_hash", enum_update_hash, MRB_ARGS_REQ(3));
}