diff --git a/pokemongo_bot/cell_workers/transfer_pokemon.py b/pokemongo_bot/cell_workers/transfer_pokemon.py
index 9ae9a30a9a..8388d9a756 100644
--- a/pokemongo_bot/cell_workers/transfer_pokemon.py
+++ b/pokemongo_bot/cell_workers/transfer_pokemon.py
@@ -253,7 +253,7 @@ def _validate_keep_best_config_custom(self, pokemon_name, keep_best_possible_cus
         if keep_best_custom and keep_amount:
             keep_best = True
 
-            keep_best_custom = keep_best_custom.split(',')
+            keep_best_custom = keep_best_custom.replace(' ','').split(',')
             for _str in keep_best_custom:
                 if _str not in keep_best_possible_custom:
                     keep_best = False