diff --git a/pytket/extensions/cutensornet/mps/mps_gate.py b/pytket/extensions/cutensornet/mps/mps_gate.py
index c7dc496e..df9b9418 100644
--- a/pytket/extensions/cutensornet/mps/mps_gate.py
+++ b/pytket/extensions/cutensornet/mps/mps_gate.py
@@ -305,6 +305,7 @@ def _apply_2q_gate(self, positions: tuple[int, int], gate: Op) -> MPSxGate:
             self._logger.debug(
                 f"Reduced virtual bond dimension from {new_dim} to {R.shape[0]}."
             )
+            self._logger.debug("QR decomposition applied.")
 
         self.tensors[l_pos] = L
         self.tensors[r_pos] = R
diff --git a/pytket/extensions/cutensornet/mps/mps_mpo.py b/pytket/extensions/cutensornet/mps/mps_mpo.py
index 47274262..09f53a1a 100644
--- a/pytket/extensions/cutensornet/mps/mps_mpo.py
+++ b/pytket/extensions/cutensornet/mps/mps_mpo.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 from __future__ import annotations  # type: ignore
 import warnings
+import logging
 
 from typing import Optional, Union