diff --git a/pytest/test_func_ge.py b/pytest/test_func_ge.py
index 844d428..946d44c 100644
--- a/pytest/test_func_ge.py
+++ b/pytest/test_func_ge.py
@@ -1,3 +1,4 @@
+import pytest
 from GENetLib.sim_data_func import sim_data_func
 from GENetLib.func_ge import func_ge