diff --git a/src/icesat2_tracks/analysis_db/B06_correct_separate_var.py b/src/icesat2_tracks/analysis_db/B06_correct_separate_var.py
index 6825a64f..14d485df 100644
--- a/src/icesat2_tracks/analysis_db/B06_correct_separate_var.py
+++ b/src/icesat2_tracks/analysis_db/B06_correct_separate_var.py
@@ -14,7 +14,7 @@
 )
 
 import h5py
-import icesat2_tracks.ICEsat2_SI_tools.io as io
+import icesat2_tracks.ICEsat2_SI_tools.iotools as io
 import icesat2_tracks.local_modules.m_tools_ph3 as MT
 from icesat2_tracks.local_modules import m_general_ph3 as M
 import time