diff --git a/sohstationviewer/model/reftek/reftek_data/reftek_helper.py b/sohstationviewer/model/reftek/reftek_data/reftek_helper.py
index 3af091e35967754044345e59b9ccebf41304ea6e..465e2b6a9dc3b569b2c36becdadbd6a0666106a6 100644
--- a/sohstationviewer/model/reftek/reftek_data/reftek_helper.py
+++ b/sohstationviewer/model/reftek/reftek_data/reftek_helper.py
@@ -5,7 +5,7 @@ import numpy
 import numpy as np
 
 from sohstationviewer.model.mseed_data.record_reader_helper import Unpacker
-from sohstationviewer.model.reftek.from_rt2ms.packet import \
+from sohstationviewer.model.reftek.reftek_data.packet import \
     eh_et_payload_end_in_packet
 from sohstationviewer.model.reftek.reftek_data.dt_packet import (
     read_dt_packet, DTPacket,