diff --git a/qiskit/aqua/operators/legacy/weighted_pauli_operator.py b/qiskit/aqua/operators/legacy/weighted_pauli_operator.py
index 0893cbf863..2233145219 100644
--- a/qiskit/aqua/operators/legacy/weighted_pauli_operator.py
+++ b/qiskit/aqua/operators/legacy/weighted_pauli_operator.py
@@ -103,7 +103,7 @@ def to_opflow(self, reverse_endianness=False):
             pauli = Pauli.from_label(str(p)[::-1]) if reverse_endianness else p
             # Adding the imaginary is necessary to handle the imaginary coefficients in UCCSD.
             # TODO fix these or add support for them in Terra.
-            pauli_ops += [PrimitiveOp(pauli, coeff=np.real(w) + np.imag(w))]
+            pauli_ops += [PrimitiveOp(pauli, coeff=w)]
         return sum(pauli_ops)
 
     @property