diff --git a/src/block.cpp b/src/block.cpp
index e1114c6..7a4d2ae 100644
--- a/src/block.cpp
+++ b/src/block.cpp
@@ -21,6 +21,10 @@ Block::Block(const char* _name, color_t _color, block_type_t _type) :
 		name(_name)
 {
 	tick(begin);
+	if (this->type == BLOCK_TYPE_MARK)
+	{
+		end = begin;
+	}
 	thread_id = std::hash<std::thread::id>()(std::this_thread::get_id());
 }
 
@@ -42,8 +46,4 @@ Block::~Block()
 
 		endBlock();
 	}
-	else{//for mark end equal begin
-		end = begin;
-	}
-	
 }
diff --git a/src/profile_manager.cpp b/src/profile_manager.cpp
index 22031ef..611b968 100644
--- a/src/profile_manager.cpp
+++ b/src/profile_manager.cpp
@@ -2,6 +2,7 @@
 
 #include <thread>
 #include <string.h>
+
 #include <fstream>
 
 using namespace profiler;
@@ -77,7 +78,12 @@ ProfileManager::ProfileManager()
 
 ProfileManager::~ProfileManager()
 {
+	std::ofstream of("test.prof",std::fstream::binary);
+
 	for (auto* b : m_blocks){
+		uint16_t sz = b->size();
+		of.write((const char*)&sz, sizeof(uint16_t));
+		of.write(b->data(), b->size());
 		delete b;
 	}
 }