diff --git a/datasets/S3DIS.py b/datasets/S3DIS.py
index 0816516..dfbcf51 100644
--- a/datasets/S3DIS.py
+++ b/datasets/S3DIS.py
@@ -130,7 +130,7 @@ class S3DISDataset(PointCloudDataset):
         # Prepare ply files
         ###################
 
-        #self.prepare_S3DIS_ply()
+        self.prepare_S3DIS_ply()
 
         ################
         # Load ply files