diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/SelectorManager.java b/jetty-io/src/main/java/org/eclipse/jetty/io/SelectorManager.java
index ad35aa2f388..fab73091622 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/SelectorManager.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/SelectorManager.java
@@ -148,14 +148,14 @@ public abstract class SelectorManager extends ContainerLifeCycle implements Dump
     public int getTotalKeys()
     {
         int keys = 0;
-        for (final ManagedSelector selector : _selectors)
+        for (ManagedSelector selector : _selectors)
         {
-            keys += selector.getTotalKeys();
+            if (selector != null)
+                keys += selector.getTotalKeys();
         }
         return keys;
     }
 
-
     /**
      * @return the number of selectors in use
      */