diff --git a/pyRawMSDataReader/pyRawMSDataReader/WiffFileReader_py.py b/pyRawMSDataReader/pyRawMSDataReader/WiffFileReader_py.py
index 904fd72ae1710b50e15937e9b761c85e08589685..e8e8fe7d7911d34f3caeecceebe77427a37798b7 100644
--- a/pyRawMSDataReader/pyRawMSDataReader/WiffFileReader_py.py
+++ b/pyRawMSDataReader/pyRawMSDataReader/WiffFileReader_py.py
@@ -4,7 +4,7 @@ import numpy as np
 
 from pythonnet import load
 
-load("coreclr")
+load("mono")
 import clr
 
 clr.AddReference("/home/leo/PycharmProjects/pseudo_image/pyRawMSDataReader/DLLs/WiffFileReader.dll")