diff --git a/tools/fep/fdti.py b/tools/fep/fdti.py
index 1f3f86f001..c439f72eb0 100755
--- a/tools/fep/fdti.py
+++ b/tools/fep/fdti.py
@@ -23,7 +23,7 @@ if len(tok) == 4:
     v = float(tok[3])
 lo = -rt * math.log(float(tok[2]) / v)
     
-i = 0
+i = 1
 sum = 0.0
 for line in sys.stdin:
     tok = line.split()