diff --git a/yli/io.py b/yli/io.py
index 467cfb8..a71a297 100644
--- a/yli/io.py
+++ b/yli/io.py
@@ -23,7 +23,7 @@ import io
 import lzma
 import pickle
 
-def pickle_write_encrypted(df, fname, salt=None):
+def pickle_write_encrypted(df, fname):
 	"""
 	Write the DataFrame to an encrypted file
 	
@@ -33,8 +33,7 @@ def pickle_write_encrypted(df, fname, salt=None):
 	"""
 	
 	# Get random salt
-	if salt is None:
-		salt = get_random_bytes(16)
+	salt = get_random_bytes(16)
 	
 	# Serialise Pandas and compress
 	pickle_pt = io.BytesIO()