diff --git a/src/qibotn/backends/gpu.py b/src/qibotn/backends/gpu.py
index e2087db..96eaab3 100644
--- a/src/qibotn/backends/gpu.py
+++ b/src/qibotn/backends/gpu.py
@@ -70,9 +70,9 @@ class CuTensorNet(NumpyBackend):  # pragma: no cover
 
         """
 
-        import qibotn.cutn
+        import qibotn.src.qibotn.eval
 
-        cutn = qibotn.cutn
+        cutn = qibotn.eval
         MPI_enabled = self.MPI_enabled
         MPS_enabled = self.MPS_enabled
         NCCL_enabled = self.NCCL_enabled
diff --git a/src/qibotn/cutn.py b/src/qibotn/eval.py
similarity index 100%
rename from src/qibotn/cutn.py
rename to src/qibotn/eval.py