diff --git a/examples/examples_PINNacle/example_poisson/example_poisson_3d_complex_geometry.py b/examples/examples_PINNacle/example_poisson/example_poisson_3d_complex_geometry.py
index 4c340812..52e54e00 100644
--- a/examples/examples_PINNacle/example_poisson/example_poisson_3d_complex_geometry.py
+++ b/examples/examples_PINNacle/example_poisson/example_poisson_3d_complex_geometry.py
@@ -193,7 +193,7 @@ def select_k(grid):
             {
                 'coeff': forcing_term,
                 'term': [None],
-                'pow': 1
+                'pow': 0
             }
     }