diff --git a/tests/test_gates_gates.py b/tests/test_gates_gates.py
index 67fe0229f2..ed3e6cc4a3 100644
--- a/tests/test_gates_gates.py
+++ b/tests/test_gates_gates.py
@@ -698,6 +698,9 @@ def test_cun(backend, name, params):
 
     gate = getattr(gates, name)(0, 1, **params)
 
+    if name == "CRY":
+        decomposition = gate.decompose()
+
     assert gate.unitary
 
     if name != "CU2":
@@ -723,10 +726,10 @@ def test_cun(backend, name, params):
     backend.assert_allclose(final_state, target_state, atol=1e-6)
 
     if name == "CRY":
-        decomposition = Circuit(2)
-        decomposition.add(gate.decompose())
-        decomposition = decomposition.unitary(backend=backend)
-        backend.assert_allclose(decomposition, _matrix)
+        matrix = Circuit(2)
+        matrix.add(decomposition)
+        matrix = matrix.unitary(backend=backend)
+        backend.assert_allclose(matrix, _matrix)
 
 
 def test_swap(backend):