diff --git a/mozilla/editor/base/nsTextEditRules.h b/mozilla/editor/base/nsTextEditRules.h
index c17c3e4e9e5..2153b5b4dc3 100644
--- a/mozilla/editor/base/nsTextEditRules.h
+++ b/mozilla/editor/base/nsTextEditRules.h
@@ -59,6 +59,7 @@ public:
   // nsTextEditRules action id's
   enum 
   {
+    kDefault         = 0,
     // any editor that has a txn mgr
     kUndo            = 1000,
     kRedo            = 1001,
diff --git a/mozilla/editor/libeditor/text/nsTextEditRules.h b/mozilla/editor/libeditor/text/nsTextEditRules.h
index c17c3e4e9e5..2153b5b4dc3 100644
--- a/mozilla/editor/libeditor/text/nsTextEditRules.h
+++ b/mozilla/editor/libeditor/text/nsTextEditRules.h
@@ -59,6 +59,7 @@ public:
   // nsTextEditRules action id's
   enum 
   {
+    kDefault         = 0,
     // any editor that has a txn mgr
     kUndo            = 1000,
     kRedo            = 1001,