diff --git a/headers/private/app/RegistrarDefs.h b/headers/private/app/RegistrarDefs.h
index 522306c149..965f3c3016 100644
--- a/headers/private/app/RegistrarDefs.h
+++ b/headers/private/app/RegistrarDefs.h
@@ -59,6 +59,15 @@ enum {
 	B_REG_BROADCAST							= 'rgbc',
 	B_REG_START_WATCHING					= 'rgwa',
 	B_REG_STOP_WATCHING						= 'rgsw',
+	B_REG_GET_RECENT_DOCUMENTS				= 'rggd',
+	B_REG_GET_RECENT_FOLDERS				= 'rggf',
+	B_REG_GET_RECENT_APPS					= 'rgga',
+	B_REG_ADD_TO_RECENT_DOCUMENTS			= 'rg2d',
+	B_REG_ADD_TO_RECENT_FOLDERS				= 'rg2f',
+	B_REG_ADD_TO_RECENT_APPS				= 'rg2a',
+	B_REG_CLEAR_RECENT_DOCUMENTS			= 'rgxd',
+	B_REG_CLEAR_RECENT_FOLDERS				= 'rgxf',
+	B_REG_CLEAR_RECENT_APPS					= 'rgxa',
 	// MIME requests
 	B_REG_MIME_SET_PARAM					= 'rgsp',
 	B_REG_MIME_DELETE_PARAM					= 'rgdp',