diff --git a/patches/october_2013/p09_update_naming_series_settings.py b/patches/october_2013/p09_update_naming_series_settings.py
index 18f44dc..36632b4 100644
--- a/patches/october_2013/p09_update_naming_series_settings.py
+++ b/patches/october_2013/p09_update_naming_series_settings.py
@@ -5,6 +5,14 @@
 import webnotes
 
 def execute():
+	selling_price_list =  webnotes.conn.get_value("Selling Settings", None, "selling_price_list")
+	if selling_price_list and not webnotes.conn.exists("Price List", selling_price_list):
+		webnotes.conn.set_value("Selling Settings", None, "selling_price_list", None)
+		
+	buying_price_list =  webnotes.conn.get_value("Buying Settings", None, "buying_price_list")
+	if buying_price_list and not webnotes.conn.exists("Price List", buying_price_list):
+		webnotes.conn.set_value("Buying Settings", None, "buying_price_list", None)
+	
 	# reset property setters for series
 	for name in ("Stock Settings", "Selling Settings", "Buying Settings", "HR Settings"):
 		webnotes.bean(name, name).save()
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