diff --git a/qualtran/_infra/controlled_test.py b/qualtran/_infra/controlled_test.py
index 9c3f50532..ebdc92d71 100644
--- a/qualtran/_infra/controlled_test.py
+++ b/qualtran/_infra/controlled_test.py
@@ -341,9 +341,9 @@ def test_notebook():
 
 
 def _verify_ctrl_tensor_for_unitary(ctrl_spec: CtrlSpec, bloq: Bloq, gate: cirq.Gate):
-    cbloq = Controlled(bloq, ctrl_spec)
+    ctrl_bloq = Controlled(bloq, ctrl_spec)
     cgate = cirq.ControlledGate(gate, control_values=ctrl_spec.to_cirq_cv())
-    np.testing.assert_allclose(cbloq.tensor_contract(), cirq.unitary(cgate), atol=1e-8)
+    np.testing.assert_allclose(ctrl_bloq.tensor_contract(), cirq.unitary(cgate), atol=1e-8)
 
 
 interesting_ctrl_specs = [
@@ -368,15 +368,15 @@ def test_controlled_tensor_for_unitary(ctrl_spec: CtrlSpec):
 def test_controlled_tensor_without_decompose():
     ctrl_spec = CtrlSpec()
     bloq = TwoBitCSwap()
-    cbloq = Controlled(bloq, ctrl_spec)
+    ctrl_bloq = Controlled(bloq, ctrl_spec)
     cgate = cirq.ControlledGate(cirq.CSWAP, control_values=ctrl_spec.to_cirq_cv())
 
-    tn = cbloq_to_quimb(cbloq.as_composite_bloq())
+    tn = cbloq_to_quimb(ctrl_bloq.as_composite_bloq())
     # pylint: disable=unbalanced-tuple-unpacking
-    right, left = get_right_and_left_inds(tn, cbloq.signature)
+    right, left = get_right_and_left_inds(tn, ctrl_bloq.signature)
     # pylint: enable=unbalanced-tuple-unpacking
     np.testing.assert_allclose(tn.to_dense(right, left), cirq.unitary(cgate), atol=1e-8)
-    np.testing.assert_allclose(cbloq.tensor_contract(), cirq.unitary(cgate), atol=1e-8)
+    np.testing.assert_allclose(ctrl_bloq.tensor_contract(), cirq.unitary(cgate), atol=1e-8)
 
 
 def test_controlled_global_phase_tensor():
@@ -402,10 +402,10 @@ def signature(self) -> 'Signature':
 
     def build_composite_bloq(self, bb: 'BloqBuilder') -> Dict[str, 'SoquetT']:
         one_or_zero = [ZeroState(), OneState()]
-        cbloq = Controlled(And(*self.and_ctrl), ctrl_spec=self.ctrl_spec)
+        ctrl_bloq = Controlled(And(*self.and_ctrl), ctrl_spec=self.ctrl_spec)
 
         ctrl_soqs = {}
-        for reg, cvs in zip(cbloq.ctrl_regs, self.ctrl_spec.cvs):
+        for reg, cvs in zip(ctrl_bloq.ctrl_regs, self.ctrl_spec.cvs):
             soqs = np.empty(shape=reg.shape, dtype=object)
             for idx in reg.all_idxs():
                 soqs[idx] = bb.add(IntState(val=cvs[idx], bitsize=reg.dtype.num_qubits))
@@ -413,10 +413,10 @@ def build_composite_bloq(self, bb: 'BloqBuilder') -> Dict[str, 'SoquetT']:
 
         and_ctrl = [bb.add(one_or_zero[cv]) for cv in self.and_ctrl]
 
-        ctrl_soqs = bb.add_d(cbloq, **ctrl_soqs, ctrl=and_ctrl)
+        ctrl_soqs = bb.add_d(ctrl_bloq, **ctrl_soqs, ctrl=and_ctrl)
         out_soqs = np.asarray([*ctrl_soqs.pop('ctrl'), ctrl_soqs.pop('target')])  # type: ignore[misc]
 
-        for reg, cvs in zip(cbloq.ctrl_regs, self.ctrl_spec.cvs):
+        for reg, cvs in zip(ctrl_bloq.ctrl_regs, self.ctrl_spec.cvs):
             for idx in reg.all_idxs():
                 ctrl_soq = np.asarray(ctrl_soqs[reg.name])[idx]
                 bb.add(IntEffect(val=cvs[idx], bitsize=reg.dtype.num_qubits), val=ctrl_soq)
@@ -424,8 +424,8 @@ def build_composite_bloq(self, bb: 'BloqBuilder') -> Dict[str, 'SoquetT']:
 
 
 def _verify_ctrl_tensor_for_and(ctrl_spec: CtrlSpec, and_ctrl: Tuple[int, int]):
-    cbloq = TestCtrlStatePrepAnd(ctrl_spec, and_ctrl)
-    bloq_tensor = cbloq.tensor_contract()
+    bloq = TestCtrlStatePrepAnd(ctrl_spec, and_ctrl)
+    bloq_tensor = bloq.tensor_contract()
     cirq_state_vector = GateHelper(And(*and_ctrl)).circuit.final_state_vector(
         initial_state=and_ctrl + (0,)
     )