diff --git a/src/CreateInterTree/CreateInterTree.cpp b/src/CreateInterTree/CreateInterTree.cpp
index c48a111..c735776 100644
--- a/src/CreateInterTree/CreateInterTree.cpp
+++ b/src/CreateInterTree/CreateInterTree.cpp
@@ -17,7 +17,7 @@ using std::fstream;
 static long int getNextTag()
 {
     static long int INTERVAL_TAG = 0;
-    return INTERVAL_TAG++;
+    return -(INTERVAL_TAG++);
 }
 
 //Debug funcs
@@ -413,7 +413,7 @@ static void findIntervals(SpfInterval *interval, map<int, int> &labelsRef, map<i
         inter->lineFile = std::make_pair(currentSt->lineNumber(), currentSt->fileName());
         inter->parent = interval;
         inter->exit_levels.push_back(0);
-        inter->tag = getNextTag();
+        inter->tag = currentSt->lineNumber();//getNextTag();
         interval->nested.push_back(inter);
 
         findIntervals(inter, labelsRef, gotoStmts, currentSt);
diff --git a/src/Utils/version.h b/src/Utils/version.h
index e6da384..787b254 100644
--- a/src/Utils/version.h
+++ b/src/Utils/version.h
@@ -1,3 +1,3 @@
 #pragma once
 
-#define VERSION_SPF "2469"
+#define VERSION_SPF "2470"