diff --git a/app/filters/circuit.py b/app/filters/circuit.py
index 5349fb4d..e2727e43 100644
--- a/app/filters/circuit.py
+++ b/app/filters/circuit.py
@@ -19,6 +19,7 @@ class CircuitFilterMixin:
     build_category__in: list[CircuitBuildCategory] | None = None
 
     target_simulator: TargetSimulator | None = None
+    target_simulator__in: list[TargetSimulator] | None = None
 
 
 class NestedCircuitFilter(
diff --git a/tests/test_circuit.py b/tests/test_circuit.py
index 0259682f..9b5e9b59 100644
--- a/tests/test_circuit.py
+++ b/tests/test_circuit.py
@@ -396,6 +396,16 @@ def test_filtering(client, root_circuit, models):
     ).json()["data"]
     assert len(data) == 2  # 2 of the 6 children use NEURON; root_circuit uses CORENEURON
 
+    data = assert_request(
+        client.get,
+        url=ROUTE,
+        params={
+            "root_circuit_id": str(root_circuit.id),
+            "target_simulator__in": [TargetSimulator.neuron, TargetSimulator.brian2],
+        },
+    ).json()["data"]
+    assert len(data) == 3  # NEURON x2 + Brian2 x1 among the children
+
     data = assert_request(
         client.get,
         url=ROUTE,