diff --git a/scripts/preprocess-remote.py b/scripts/preprocess-remote.py
index 44f097c..4bf3f62 100644
--- a/scripts/preprocess-remote.py
+++ b/scripts/preprocess-remote.py
@@ -153,15 +153,6 @@ def processFolder(
   if 0 < testPadding:
     testing = dropPadding(testing, testPadding)
 
-  def saveSubset(filename, idx):
-    print('%s: %d frames' % (filename, len(idx)))
-    subset = {k: v[idx] for k, v in dataset.items()}
-    time = subset['time']
-    diff = np.diff(time)
-    assert np.all(diff >= 0), 'Time is not monotonically increasing!'
-    np.savez(os.path.join(folder, filename), **subset)
-    return
-
   # remove the npz files
   files = os.listdir(folder)
   for fn in files:
@@ -169,10 +160,19 @@ def saveSubset(filename, idx):
   print('Removed', len(files), 'files')
   
   totalFrames = len(testing) + len(training)
-  if minFrames < totalFrames:
+  if totalFrames < minFrames:
     print('Not enough frames: %d < %d' % (totalFrames, minFrames))
     return 0, 0
   # save training and testing sets 
+  def saveSubset(filename, idx):
+    print('%s: %d frames' % (filename, len(idx)))
+    subset = {k: v[idx] for k, v in dataset.items()}
+    time = subset['time']
+    diff = np.diff(time)
+    assert np.all(diff >= 0), 'Time is not monotonically increasing!'
+    np.savez(os.path.join(folder, filename), **subset)
+    return
+
   saveSubset('train.npz', training)
   saveSubset('test.npz', testing)