diff --git a/schainpy/model/io/jrodataIO.py b/schainpy/model/io/jrodataIO.py
index e9c4a8c..2821b5f 100644
--- a/schainpy/model/io/jrodataIO.py
+++ b/schainpy/model/io/jrodataIO.py
@@ -2,4 +2,5 @@ from jroIO_voltage import *
 from jroIO_spectra import *
 from jroIO_heispectra import *
 from jroIO_amisr import *
-from jroIO_HDF5 import *
\ No newline at end of file
+from jroIO_HDF5 import *
+from jroIO_hf import *
\ No newline at end of file