diff --git a/inference_sdk/http/entities.py b/inference_sdk/http/entities.py
index 95bc9cad51..0dad1e4492 100644
--- a/inference_sdk/http/entities.py
+++ b/inference_sdk/http/entities.py
@@ -415,6 +415,8 @@ def to_legacy_call_parameters(self) -> Dict[str, Any]:
             ("source", "source"),
             ("source_info", "source_info"),
             ("response_mask_format", "response_mask_format"),
+            # The legacy route reads it as a query parameter (see `legacy_infer_from_request`).
+            ("include_anomaly_map", "include_anomaly_map"),
         ]
         parameters = get_non_empty_attributes(
             source_object=self,
diff --git a/tests/inference_sdk/unit_tests/http/test_entities.py b/tests/inference_sdk/unit_tests/http/test_entities.py
index 3ef404de2e..35ac66c82d 100644
--- a/tests/inference_sdk/unit_tests/http/test_entities.py
+++ b/tests/inference_sdk/unit_tests/http/test_entities.py
@@ -342,6 +342,24 @@ def test_to_legacy_call_parameters_context_overrides_explicit_count_inference_tr
     assert parameters["service_secret"] == "ctx-secret"
 
 
+@pytest.mark.parametrize("client_mode", [HTTPClientMode.V0, HTTPClientMode.V1])
+@pytest.mark.parametrize("requested", [None, False, True])
+def test_include_anomaly_map_reaches_both_api_versions(client_mode, requested):
+    # given - the anomaly heatmap is requested the same way on the legacy route and v1
+    configuration = InferenceConfiguration(include_anomaly_map=requested)
+
+    # when
+    parameters = configuration.to_api_call_parameters(
+        client_mode=client_mode, task_type=CLASSIFICATION_TASK
+    )
+
+    # then
+    if requested is None:
+        assert "include_anomaly_map" not in parameters
+    else:
+        assert parameters["include_anomaly_map"] is requested
+
+
 @pytest.mark.parametrize("client_mode", [HTTPClientMode.V0, HTTPClientMode.V1])
 @pytest.mark.parametrize("opt_in", [None, False, True])
 def test_mask_resolution_opt_in_is_serialized_only_when_selected(client_mode, opt_in):