diff --git a/Scripts_Matthieu/AnalysisFunctions.py b/Scripts_Matthieu/AnalysisFunctions.py
index 7e7f002c8430b0195efdbe21ac94a7de119e1880..748766ab74b78df0b46fc1c63319a4c664875acb 100644
--- a/Scripts_Matthieu/AnalysisFunctions.py
+++ b/Scripts_Matthieu/AnalysisFunctions.py
@@ -30,8 +30,8 @@ def extractValues(positions, drifts, efield, edescr, bdescr, ExB):
             ea.append(efa)
             ba.append(ba)
             da.append(ExB(efa, bfa).tolist())
-	    dnumperp.append(transformCyltoRadPerp(dnum[i],pos[i]))
-	    enumperp.append(transformCyltoRadPerp(enum[i],pos[i]))
+            dnumperp.append(transformCyltoRadPerp(dnum[i],pos[i]))
+            enumperp.append(transformCyltoRadPerp(enum[i],pos[i]))
     return [pos, enum, dnum, enumperp,dnumperp, ea , ba, da]
 
 def extractVectorInfo(numeric,analytical):