diff --git a/spring-webflow/src/main/java/org/springframework/webflow/executor/jsf/FlowExecutionHolder.java b/spring-webflow/src/main/java/org/springframework/webflow/executor/jsf/FlowExecutionHolder.java
index 814b5038..97017fbb 100644
--- a/spring-webflow/src/main/java/org/springframework/webflow/executor/jsf/FlowExecutionHolder.java
+++ b/spring-webflow/src/main/java/org/springframework/webflow/executor/jsf/FlowExecutionHolder.java
@@ -128,6 +128,7 @@ public class FlowExecutionHolder implements Serializable {
 		if (flowExecutionLock != null) {
 			flowExecutionLock.unlock();
 		}
+		this.flowExecutionLock = null;
 		this.flowExecution = flowExecution;
 	}