diff --git a/dataset.py b/dataset.py
index 62290db..b5d7468 100755
--- a/dataset.py
+++ b/dataset.py
@@ -123,7 +123,10 @@ class LmdbDataset(Dataset):
             nSamples = int(txn.get('num-samples'.encode()))
             self.nSamples = nSamples
 
-            if self.opt.data_filtering:
+            if self.opt.data_filtering_off:
+                # for fast check with no filtering
+                self.filtered_index_list = [index + 1 for index in range(self.nSamples)]
+            else:
                 # Filtering
                 self.filtered_index_list = []
                 for index in range(self.nSamples):
@@ -139,9 +142,6 @@ class LmdbDataset(Dataset):
                     self.filtered_index_list.append(index)
 
                 self.nSamples = len(self.filtered_index_list)
-            else:
-                # for fast check with no filtering
-                self.filtered_index_list = [index+1 for index in range(self.nSamples)]
 
     def __len__(self):
         return self.nSamples
diff --git a/test.py b/test.py
index 58716b6..ba1d269 100755
--- a/test.py
+++ b/test.py
@@ -203,7 +203,7 @@ if __name__ == '__main__':
     parser.add_argument('--character', type=str, default='0123456789abcdefghijklmnopqrstuvwxyz', help='character label')
     parser.add_argument('--sensitive', action='store_true', help='for sensitive character mode')
     parser.add_argument('--PAD', action='store_true', help='whether to keep ratio then pad for image resize')
-    parser.add_argument('--data_filtering', default=True, help='for data_filtering mode')
+    parser.add_argument('--data_filtering_off', action='store_true', help='for data_filtering_off mode')
     """ Model Architecture """
     parser.add_argument('--Transformation', type=str, required=True, help='Transformation stage. None|TPS')
     parser.add_argument('--FeatureExtraction', type=str, required=True, help='FeatureExtraction stage. VGG|RCNN|ResNet')
diff --git a/train.py b/train.py
index 7a48b9f..284ebf8 100755
--- a/train.py
+++ b/train.py
@@ -225,7 +225,7 @@ if __name__ == '__main__':
     parser.add_argument('--character', type=str, default='0123456789abcdefghijklmnopqrstuvwxyz', help='character label')
     parser.add_argument('--sensitive', action='store_true', help='for sensitive character mode')
     parser.add_argument('--PAD', action='store_true', help='whether to keep ratio then pad for image resize')
-    parser.add_argument('--data_filtering', default=True, help='for data_filtering mode')
+    parser.add_argument('--data_filtering_off', action='store_true', help='for data_filtering_off mode')
     """ Model Architecture """
     parser.add_argument('--Transformation', type=str, required=True, help='Transformation stage. None|TPS')
     parser.add_argument('--FeatureExtraction', type=str, required=True, help='FeatureExtraction stage. VGG|RCNN|ResNet')