diff --git a/pennylane_qiskit/qiskit_device_legacy.py b/pennylane_qiskit/qiskit_device_legacy.py
index dc7c304f..382df063 100644
--- a/pennylane_qiskit/qiskit_device_legacy.py
+++ b/pennylane_qiskit/qiskit_device_legacy.py
@@ -134,6 +134,11 @@ def __init__(self, wires, provider, backend, shots=1024, **kwargs):
 
             self.shots = 1024
 
+        if shots and not isinstance(shots, int):
+            raise ValueError(
+                f"Shots needs to be an integer value. Shot vectors are not supported for {self.name}."
+            )
+
         self._capabilities["returns_state"] = self._is_state_backend
 
         # Perform validation against backend
diff --git a/tests/test_qiskit_device.py b/tests/test_qiskit_device.py
index b832cbcc..51d3ae9e 100644
--- a/tests/test_qiskit_device.py
+++ b/tests/test_qiskit_device.py
@@ -322,3 +322,16 @@ def barrier_func():
         res = barrier_func()
         assert barrier_func.tape.operations[0] == qml.Barrier([0, 1])
         assert np.allclose(res, dev.batch_execute([barrier_func.tape]), atol=0)
+
+
+def test_aer_device_shots_value_error():
+    """Tests that aer device raises an error when given a shot vector"""
+    with pytest.raises(
+        ValueError, match="Shots needs to be an integer value. Shot vectors are not supported"
+    ):
+        AerDevice(backend="aer_simulator", wires=1, shots=(1, 1, 1))
+
+    with pytest.raises(
+        ValueError, match="Shots needs to be an integer value. Shot vectors are not supported"
+    ):
+        AerDevice(backend="aer_simulator", wires=1, shots=[1, 1, 1])