diff --git a/partitions.hpp b/partitions.hpp
index 30d5511..83e9243 100644
--- a/partitions.hpp
+++ b/partitions.hpp
@@ -191,6 +191,7 @@
 	bool Backup_Partition(TWPartition* Part, string Backup_Folder, bool generate_md5, unsigned long long* img_bytes_remaining, unsigned long long* file_bytes_remaining, unsigned long *img_time, unsigned long *file_time, unsigned long long *img_bytes, unsigned long long *file_bytes);
 	bool Restore_Partition(TWPartition* Part, string Restore_Name, int partition_count);
 	void Output_Partition(TWPartition* Part);
+	int Open_Lun_File(string Partition_Path, string Lun_File);
 
 private:
 	std::vector<TWPartition*> Partitions;                                     // Vector list of all partitions