diff --git a/core/src/main/java/hudson/model/Actionable.java b/core/src/main/java/hudson/model/Actionable.java
index 1dfa313300..c7fc6e554c 100644
--- a/core/src/main/java/hudson/model/Actionable.java
+++ b/core/src/main/java/hudson/model/Actionable.java
@@ -78,6 +78,8 @@ public abstract class Actionable extends AbstractModelObject {
 
     public Object getDynamic(String token, StaplerRequest req, StaplerResponse rsp) {
         for (Action a : getActions()) {
+            if(a==null)
+                continue;   // be defensive
             String urlName = a.getUrlName();
             if(urlName==null)
                 continue;