diff --git a/qiskit/dagcircuit/dagcircuit.py b/qiskit/dagcircuit/dagcircuit.py
index aedba187499f..4436d1394c73 100644
--- a/qiskit/dagcircuit/dagcircuit.py
+++ b/qiskit/dagcircuit/dagcircuit.py
@@ -996,10 +996,7 @@ def substitute_node_with_dag(self, node, input_dag, wires=None):
                 in_dag.apply_operation_back(replay_node.op, replay_node.qargs, replay_node.cargs)
 
         if in_dag.global_phase:
-            from sympy import evaluate
-
-            with evaluate(False):
-                self.global_phase += in_dag.global_phase
+            self.global_phase += in_dag.global_phase
 
         if wires is None:
             wires = in_dag.wires
diff --git a/qiskit/transpiler/passes/basis/basis_translator.py b/qiskit/transpiler/passes/basis/basis_translator.py
index 0660ba47a79d..dc154284cf13 100644
--- a/qiskit/transpiler/passes/basis/basis_translator.py
+++ b/qiskit/transpiler/passes/basis/basis_translator.py
@@ -181,10 +181,7 @@ def run(self, dag):
                     dag.substitute_node(node, dag_op, inplace=True)
 
                     if bound_target_dag.global_phase:
-                        from sympy import evaluate
-
-                        with evaluate(False):
-                            dag.global_phase += bound_target_dag.global_phase
+                        dag.global_phase += bound_target_dag.global_phase
                 else:
                     dag.substitute_node_with_dag(node, bound_target_dag)
             else: