diff --git a/GHA_triaxial/approx_gha1.py b/GHA_triaxial/approx_gha1.py
index 379e3ae..28fae4c 100644
--- a/GHA_triaxial/approx_gha1.py
+++ b/GHA_triaxial/approx_gha1.py
@@ -1,6 +1,6 @@
 import numpy as np
 from ellipsoide import EllipsoidTriaxial
-from panou import louville_constant, func_sigma_ell, gha1_ana
+from .panou import louville_constant, func_sigma_ell, gha1_ana
 import plotly.graph_objects as go
 import winkelumrechnungen as wu