diff --git a/modules/icing/pirep_goes.py b/modules/icing/pirep_goes.py
index 5fada8e08283789660940fdc6013e6cfc0483fca..acf468f711205cd5de4072d9426cdb4b568b4e17 100644
--- a/modules/icing/pirep_goes.py
+++ b/modules/icing/pirep_goes.py
@@ -1001,7 +1001,7 @@ def tile_extract(trnfile='/home/rink/tiles_l1b_train.h5', tstfile='/home/rink/ti
 
     #trn_idxs, tst_idxs = split_data(icing_intensity.shape[0], shuffle=False, perc=split)
     all_idxs = np.arange(icing_intensity.shape[0])
-    splt_idx = int(icing_intensity.shape[0] * 0.8)
+    splt_idx = int(icing_intensity.shape[0] * (1-split))
     trn_idxs = all_idxs[0:splt_idx]
     tst_idxs = all_idxs[splt_idx:]
     # ---------------------------------------------