diff --git a/core/src/main/java/hudson/model/AbstractProject.java b/core/src/main/java/hudson/model/AbstractProject.java
index cded933bcb14..20acbc46487e 100644
--- a/core/src/main/java/hudson/model/AbstractProject.java
+++ b/core/src/main/java/hudson/model/AbstractProject.java
@@ -238,8 +238,8 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
      */
     @AdaptField(was=List.class)
     protected volatile DescribableList<Trigger<?>,TriggerDescriptor> triggers = new DescribableList<Trigger<?>,TriggerDescriptor>(this);
-    private AtomicReferenceFieldUpdater<AbstractProject,List> triggersUpdater
-            = AtomicReferenceFieldUpdater.newUpdater(AbstractProject.class,List.class,"triggers");
+    private AtomicReferenceFieldUpdater<AbstractProject,DescribableList> triggersUpdater
+            = AtomicReferenceFieldUpdater.newUpdater(AbstractProject.class,DescribableList.class,"triggers");
 
     /**
      * {@link Action}s contributed from subsidiary objects associated with