diff --git a/accessible/src/base/nsAccessibilityService.h b/accessible/src/base/nsAccessibilityService.h
index 162cac1aabe..341266c068d 100644
--- a/accessible/src/base/nsAccessibilityService.h
+++ b/accessible/src/base/nsAccessibilityService.h
@@ -340,7 +340,8 @@ static const char kEventTypeNames[][40] = {
   "hypertext changed",                       // EVENT_HYPERTEXT_CHANGED
   "hypertext links count changed",           // EVENT_HYPERTEXT_NLINKS_CHANGED
   "object attribute changed",                // EVENT_OBJECT_ATTRIBUTE_CHANGED
-  "internal load"                            // EVENT_INTERNAL_LOAD
+  "internal load",                           // EVENT_INTERNAL_LOAD
+  "reorder"                                  // EVENT_REORDER
 };
 
 #endif /* __nsIAccessibilityService_h__ */