diff --git a/dom/public/coreEvents/nsIDOMEvent.h b/dom/public/coreEvents/nsIDOMEvent.h
index cd40046fa62..b2c6be781fb 100644
--- a/dom/public/coreEvents/nsIDOMEvent.h
+++ b/dom/public/coreEvents/nsIDOMEvent.h
@@ -38,9 +38,9 @@ class nsIDOMEvent : public nsISupports {
 public:
   static const nsIID& GetIID() { static nsIID iid = NS_IDOMEVENT_IID; return iid; }
   enum {
-    BUBBLING_PHASE = 1,
-    CAPTURING_PHASE = 2,
-    AT_TARGET = 3,
+    CAPTURING_PHASE = 1,
+    AT_TARGET = 2,
+    BUBBLING_PHASE = 3,
     MOUSEDOWN = 1,
     MOUSEUP = 2,
     MOUSEOVER = 4,
diff --git a/dom/public/idl/events/Event.idl b/dom/public/idl/events/Event.idl
index e9e642ce678..13b090a4c6e 100644
--- a/dom/public/idl/events/Event.idl
+++ b/dom/public/idl/events/Event.idl
@@ -3,9 +3,9 @@
   { 0x00, 0x80, 0x5f, 0x8a, 0xe3, 0x8a, 0xdd, 0x32 } } */
 
 
-		    const unsigned short	BUBBLING_PHASE	= 1;
-		    const unsigned short	CAPTURING_PHASE = 2;
-		    const unsigned short	AT_TARGET		= 3;
+          const unsigned short	CAPTURING_PHASE = 1;
+		  const unsigned short	AT_TARGET       = 2;		
+		  const unsigned short	BUBBLING_PHASE  = 3;
 
 	      const int MOUSEDOWN	= 0x00000001;
 	      const int MOUSEUP		= 0x00000002;