diff --git a/examples/a2a3/tensormap_and_ringbuffer/scalar_data_test/test_scalar_data.py b/examples/a2a3/tensormap_and_ringbuffer/scalar_data_test/test_scalar_data.py
index 590bda5cb2..49771dcd8b 100644
--- a/examples/a2a3/tensormap_and_ringbuffer/scalar_data_test/test_scalar_data.py
+++ b/examples/a2a3/tensormap_and_ringbuffer/scalar_data_test/test_scalar_data.py
@@ -60,7 +60,10 @@ def generate_args(self, params):
             Tensor("a", torch.full((SIZE,), 2.0, dtype=torch.float32)),
             Tensor("b", torch.arange(SIZE, dtype=torch.float32)),
             Tensor("result", torch.zeros(SIZE, dtype=torch.float32)),
-            Tensor("check", torch.zeros(10, dtype=torch.float32)),
+            # Exactly 9 slots: the orchestration writes check[0..8] via
+            # set_tensor_data. Output-tensor slots are not seeded from the host,
+            # so any extra slot reads undefined device memory.
+            Tensor("check", torch.zeros(9, dtype=torch.float32)),
         )
 
     def compute_golden(self, args, params):