diff --git a/src/operators/energy_operators.py b/src/operators/energy_operators.py
index 7137aa47a6cac1ea6dcf1326327f9ea467608bb4..63de7e04bdf56fb7e48a5bbdb98d6dda77fb2702 100644
--- a/src/operators/energy_operators.py
+++ b/src/operators/energy_operators.py
@@ -27,7 +27,7 @@ from .linear_operator import LinearOperator
 from .operator import Operator
 from .sampling_enabler import SamplingDtypeSetter, SamplingEnabler
 from .scaling_operator import ScalingOperator
-from .simple_linear_operators import VdotOperator, FieldAdapter
+from .simple_linear_operators import VdotOperator
 
 
 def _check_sampling_dtype(domain, dtypes):