diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index 42c56a4..08033c3 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -58,7 +58,7 @@
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_http3_new_default_urgency_value, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_key_update_supported, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_let_connection_handle_pings, true)
-QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_process_undecryptable_packets_after_async_decrypt_callback, false)
+QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_process_undecryptable_packets_after_async_decrypt_callback, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_record_received_min_ack_delay, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_reject_spdy_frames, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_reject_spdy_settings, true)