diff --git a/src/qibotn/backends/__init__.py b/src/qibotn/backends/__init__.py
index 6f5abdd4..e69de29b 100644
--- a/src/qibotn/backends/__init__.py
+++ b/src/qibotn/backends/__init__.py
@@ -1,2 +0,0 @@
-from qibotn.backends.cutensornet import CuTensorNet
-from qibotn.backends.quimb import QuimbBackend