diff --git a/Utils/python/manipFMA.py b/Utils/python/manipFMA.py
index 7cbf244307ae7d2f85b7dc11f3305de74b368562..a422697b9c23ec75175e0c50627c822b63929c25 100644
--- a/Utils/python/manipFMA.py
+++ b/Utils/python/manipFMA.py
@@ -35,6 +35,7 @@ def readFMAHeader(Filename):
     s1,s2,s3,s4,s5 = (item.strip() for item in header2.split())
     NbParticles=int(s1)
     BoxWidth=float(s2)*2
+    print "BoxWidth= ", BoxWidth 
     Centre = [float(s3),float(s4),float(s5)]
     f.close()
     return dataType,nbRecordPerline,NbParticles,BoxWidth,Centre