diff --git a/src/main/java/org/jenkinsci/plugins/workflow/flow/FlowExecution.java b/src/main/java/org/jenkinsci/plugins/workflow/flow/FlowExecution.java
index ca288540..b1fa3af9 100644
--- a/src/main/java/org/jenkinsci/plugins/workflow/flow/FlowExecution.java
+++ b/src/main/java/org/jenkinsci/plugins/workflow/flow/FlowExecution.java
@@ -109,7 +109,7 @@ public FlowDurabilityHint getDurabilityHint() {
     /**
      * Should be called by the flow owner after it is deserialized.
      */
-    public /*abstract*/ void onLoad(FlowExecutionOwner owner) {
+    public /*abstract*/ void onLoad(FlowExecutionOwner owner) throws IOException {
         if (Util.isOverridden(FlowExecution.class, getClass(), "onLoad")) {
             onLoad();
         }