diff --git a/qualtran/bloqs/multi_control_multi_target_pauli.py b/qualtran/bloqs/multi_control_multi_target_pauli.py
index 8257e72a7..761b4ee6a 100644
--- a/qualtran/bloqs/multi_control_multi_target_pauli.py
+++ b/qualtran/bloqs/multi_control_multi_target_pauli.py
@@ -20,7 +20,7 @@
 from cirq._compat import cached_property
 from numpy.typing import NDArray
 
-from qualtran import GateWithRegisters, Register, Signature
+from qualtran import GateWithRegisters, Signature
 from qualtran.bloqs.and_bloq import And, MultiAnd
 from qualtran.cirq_interop.t_complexity_protocol import t_complexity, TComplexity