diff --git a/qiskit_algorithms/linear_solvers/matrices/numpy_matrix.py b/qiskit_algorithms/linear_solvers/matrices/numpy_matrix.py
index 9857498d..96a90d76 100644
--- a/qiskit_algorithms/linear_solvers/matrices/numpy_matrix.py
+++ b/qiskit_algorithms/linear_solvers/matrices/numpy_matrix.py
@@ -65,11 +65,6 @@ def __init__(
         self._evolution_time = None  # makes sure the eigenvalues are contained in [0,1)
         self._matrix = None
 
-        # store parameters
-        self.num_state_qubits = int(np.log2(matrix.shape[0]))
-        self.tolerance = tolerance
-        self.evolution_time = evolution_time
-        self.matrix = matrix
         super().__init__(
             num_state_qubits=int(np.log2(matrix.shape[0])),
             tolerance=tolerance,
@@ -77,6 +72,12 @@ def __init__(
             name=name,
         )
 
+        # store parameters
+        self.num_state_qubits = int(np.log2(matrix.shape[0]))
+        self.tolerance = tolerance
+        self.evolution_time = evolution_time
+        self.matrix = matrix
+
     @property
     def num_state_qubits(self) -> int:
         r"""The number of state qubits representing the state :math:`|x\rangle`.
@@ -181,7 +182,6 @@ def _reset_registers(self, num_state_qubits: int) -> None:
         """
         qr_state = QuantumRegister(num_state_qubits, "state")
         self.qregs = [qr_state]
-        self._qubits = qr_state[:]
 
     def _build(self) -> None:
         """Build the circuit"""