diff --git a/pyiSNV/pyisnv.py b/pyiSNV/pyisnv.py
index 8bc8ccc..4a2057e 100644
--- a/pyiSNV/pyisnv.py
+++ b/pyiSNV/pyisnv.py
@@ -12,7 +12,7 @@
 from pyiSNV.building_ref_db import GenomeMapBuilder
 from pyiSNV.building_reads_db import SampleMapBuilder
 from pyiSNV.building_connection_table import ConnectMapBuilder
-from pyiSNV.output_isnv_area import VariantLocator
+from pyiSNV.output_iSNV_area import VariantLocator
 from pyiSNV.recognise_isnv import VariantCaller
 from multiprocessing import Pool