diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/slot/DataBus.java b/liteflow-core/src/main/java/com/yomahub/liteflow/slot/DataBus.java
index 00bc9e681..3b2d6b1dd 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/slot/DataBus.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/slot/DataBus.java
@@ -134,7 +134,6 @@ public class DataBus {
 	}
 
 	public static void releaseSlot(int slotIndex) {
-		LiteflowConfig liteflowConfig = LiteflowConfigGetter.get();
 		if (ObjectUtil.isNotNull(SLOTS.get(slotIndex))) {
 			LOG.info("slot[{}] released", slotIndex);
 			SLOTS.remove(slotIndex);