diff --git a/tutorials/cfdemSolverRhoPimpleChem/PolydisperseFluidizedBed/R2_FB/CFD/octave/plotData.m b/tutorials/cfdemSolverRhoPimpleChem/PolydisperseFluidizedBed/R2_FB/CFD/octave/plotData.m
index 032fa714..7d1b5d6e 100755
--- a/tutorials/cfdemSolverRhoPimpleChem/PolydisperseFluidizedBed/R2_FB/CFD/octave/plotData.m
+++ b/tutorials/cfdemSolverRhoPimpleChem/PolydisperseFluidizedBed/R2_FB/CFD/octave/plotData.m
@@ -5,7 +5,7 @@ clear all
 close all
 clc
 
-dirfile = '../DEM/post';
+dirfile = '../../DEM/post';
 filepattern = '*.dat';
 
 % time column in the data matrix