diff --git a/src/engine/shared/datafile.cpp b/src/engine/shared/datafile.cpp
index 9e95e196a..0a243e338 100644
--- a/src/engine/shared/datafile.cpp
+++ b/src/engine/shared/datafile.cpp
@@ -578,10 +578,10 @@ CDataFileWriter::~CDataFileWriter()
 	m_pDatas = 0;
 }
 
-bool CDataFileWriter::OpenFile(class IStorage *pStorage, const char *pFilename)
+bool CDataFileWriter::OpenFile(class IStorage *pStorage, const char *pFilename, int StorageType)
 {
 	dbg_assert(!m_File, "a file already exists");
-	m_File = pStorage->OpenFile(pFilename, IOFLAG_WRITE, IStorage::TYPE_SAVE);
+	m_File = pStorage->OpenFile(pFilename, IOFLAG_WRITE, StorageType);
 	return m_File != 0;
 }
 
@@ -602,10 +602,10 @@ void CDataFileWriter::Init()
 	}
 }
 
-bool CDataFileWriter::Open(class IStorage *pStorage, const char *pFilename)
+bool CDataFileWriter::Open(class IStorage *pStorage, const char *pFilename, int StorageType)
 {
 	Init();
-	return OpenFile(pStorage, pFilename);
+	return OpenFile(pStorage, pFilename, StorageType);
 }
 
 int CDataFileWriter::GetExtendedItemTypeIndex(int Type)
diff --git a/src/engine/shared/datafile.h b/src/engine/shared/datafile.h
index d8e73f234..ac69b986e 100644
--- a/src/engine/shared/datafile.h
+++ b/src/engine/shared/datafile.h
@@ -3,6 +3,8 @@
 #ifndef ENGINE_SHARED_DATAFILE_H
 #define ENGINE_SHARED_DATAFILE_H
 
+#include <engine/storage.h>
+
 #include <base/system.h>
 #include <base/hash.h>
 
@@ -95,8 +97,8 @@ public:
 	CDataFileWriter();
 	~CDataFileWriter();
 	void Init();
-	bool OpenFile(class IStorage *pStorage, const char *pFilename);
-	bool Open(class IStorage *pStorage, const char *Filename);
+	bool OpenFile(class IStorage *pStorage, const char *pFilename, int StorageType = IStorage::TYPE_SAVE);
+	bool Open(class IStorage *pStorage, const char *Filename, int StorageType = IStorage::TYPE_SAVE);
 	int AddData(int Size, void *pData);
 	int AddDataSwapped(int Size, void *pData);
 	int AddItem(int Type, int ID, int Size, void *pData);
diff --git a/src/tools/map_convert_07.cpp b/src/tools/map_convert_07.cpp
index 87f4ec0d2..5da31c745 100644
--- a/src/tools/map_convert_07.cpp
+++ b/src/tools/map_convert_07.cpp
@@ -11,7 +11,6 @@
 #include <pnglite.h>
 /*
 	Usage: map_convert_07 <source map filepath> <dest map filepath>
-	Notes: map filepath must be relative to user default teeworlds folder
 */
 
 CDataFileReader g_DataReader;
@@ -104,7 +103,6 @@ int main(int argc, const char **argv)
 	{
 		dbg_msg("map_convert_07", "Invalid arguments");
 		dbg_msg("map_convert_07", "Usage: map_convert_07 <source map filepath> <dest map filepath>");
-		dbg_msg("map_convert_07", "Notes: map filepath must be relative to user default teeworlds folder");
 		return -1;
 	}
 
@@ -123,13 +121,13 @@ int main(int argc, const char **argv)
 	void *pItem = 0;
 	void *pData = 0;
 
-	if(!g_DataReader.Open(pStorage, pSourceFileName, IStorage::TYPE_ALL))
+	if(!g_DataReader.Open(pStorage, pSourceFileName, IStorage::TYPE_ABSOLUTE))
 	{
 		dbg_msg("map_convert_07", "failed to open source map. filename='%s'", pSourceFileName);
 		return -1;
 	}
 
-	if(!g_DataWriter.Open(pStorage, pDestFileName))
+	if(!g_DataWriter.Open(pStorage, pDestFileName, IStorage::TYPE_ABSOLUTE))
 	{
 		dbg_msg("map_convert_07", "failed to open destination map. filename='%s'", pDestFileName);
 		return -1;