diff --git a/headers/os/interface/MenuItem.h b/headers/os/interface/MenuItem.h
index 8fc6436178..a77bb36b58 100644
--- a/headers/os/interface/MenuItem.h
+++ b/headers/os/interface/MenuItem.h
@@ -114,35 +114,11 @@ private:
 		uint32		_reserved[4];
 };
 
-/*----------------------------------------------------------------*/
-/*----- BSeparatorItem class -------------------------------------*/
-
-class BSeparatorItem : public BMenuItem
-{
-public:
-						BSeparatorItem();
-						BSeparatorItem(BMessage *data);
-virtual					~BSeparatorItem();
-virtual	status_t		Archive(BMessage *data, bool deep = true) const;
-static	BArchivable		*Instantiate(BMessage *data);
-virtual	void			SetEnabled(bool state);
-
-protected:
-
-virtual	void			GetContentSize(float *width, float *height);
-virtual	void			Draw();
-
-/*----- Private or reserved -----------------------------------------*/
-private:
-virtual	void		_ReservedSeparatorItem1();
-virtual	void		_ReservedSeparatorItem2();
-
-		BSeparatorItem	&operator=(const BSeparatorItem &);
-
-		uint32		_reserved[1];
-};
-
 /*-------------------------------------------------------------*/
 /*-------------------------------------------------------------*/
 
+// We moved BSeparatorItem's declaration to its own file, but for source
+// compatibility we have to export that class from here too.
+#include <SeparatorItem.h>
+
 #endif /* _MENU_ITEM_H */
diff --git a/headers/os/interface/SeparatorItem.h b/headers/os/interface/SeparatorItem.h
new file mode 100644
index 0000000000..636492a54d
--- /dev/null
+++ b/headers/os/interface/SeparatorItem.h
@@ -0,0 +1,32 @@
+#ifndef _SEPARATOR_ITEM_H
+#define _SEPARATOR_ITEM_H
+ 
+#include <MenuItem.h>
+
+class BMessage;
+class BSeparatorItem : public BMenuItem {
+public:
+	BSeparatorItem();
+	BSeparatorItem(BMessage *data);
+	
+	virtual ~BSeparatorItem();
+	virtual	status_t Archive(BMessage *data, bool deep = true) const;
+
+	static BArchivable *Instantiate(BMessage *data);
+	virtual	void SetEnabled(bool state);
+
+protected:
+	virtual	void GetContentSize(float *width, float *height);
+	virtual	void Draw();
+
+private:
+	virtual	void _ReservedSeparatorItem1();
+	virtual	void _ReservedSeparatorItem2();
+
+	BSeparatorItem &operator=(const BSeparatorItem &);
+
+	uint32 _reserved[1];
+};
+
+
+#endif /* _SEPARATOR_ITEM_H */