diff --git a/script/local.py b/script/local.py
index 60622f4..5a2a2f0 100644
--- a/script/local.py
+++ b/script/local.py
@@ -47,7 +47,7 @@ def fit(ydata, xdata = None):
     p.addSeries(LinePlotSeries("fit"))
     p.getSeries(1).setData(fit_x, fit_y)    
     
-    if abs(mean - xdata[index_max]) < ((scale_x[0] + scale_x[1])/2):
+    if abs(mean - xdata[index_max]) < abs((scale_x[0] + scale_x[1])/2):
         print "Mean -> " +  str(mean)
         p.addMarker(mean, None, "Mean="+str(round(norm,2)), Color.MAGENTA.darker())
         return (norm, mean, sigma)