diff --git a/RNN_utils.py b/RNN_utils.py
index abba2ca..e85e57c 100644
--- a/RNN_utils.py
+++ b/RNN_utils.py
@@ -18,7 +18,7 @@ def generate_text(model, length, vocab_size, ix_to_char):
 # method for preparing the training data
 def load_data(data_dir, seq_length):
 	data = open(data_dir, 'r').read()
-	chars = list(set(data))
+	chars = sorted(set(data))
 	VOCAB_SIZE = len(chars)
 
 	print('Data length: {} characters'.format(len(data)))