diff --git a/crates/ml/src/hyperopt/adapters/dqn.rs b/crates/ml/src/hyperopt/adapters/dqn.rs
index bda4b3283..c7edab7c9 100644
--- a/crates/ml/src/hyperopt/adapters/dqn.rs
+++ b/crates/ml/src/hyperopt/adapters/dqn.rs
@@ -2977,7 +2977,7 @@ impl HyperparameterOptimizable for DQNTrainer {
             if let Ok(sync_tensor) =
                 candle_core::Tensor::zeros(1, candle_core::DType::F32, &cleanup_device)
             {
-                let _ = sync_tensor.to_vec0::<f32>();
+                drop(sync_tensor.to_vec0::<f32>());
             }
         }
         info!("Resource cleanup complete");