diff --git a/patches/june_2013/p04_fix_event_for_lead_oppty_project.py b/patches/june_2013/p04_fix_event_for_lead_oppty_project.py
index 3f66d8b..971e4c7 100644
--- a/patches/june_2013/p04_fix_event_for_lead_oppty_project.py
+++ b/patches/june_2013/p04_fix_event_for_lead_oppty_project.py
@@ -1,6 +1,8 @@
 import webnotes
 
 def execute():
+	from utilities.transaction_base import delete_events
+	
 	# delete orphaned Event User
 	webnotes.conn.sql("""delete from `tabEvent User`
 		where not exists(select name from `tabEvent` where `tabEvent`.name = `tabEvent User`.parent)""")
@@ -15,5 +17,4 @@
 						webnotes.get_obj(dt, ref_name).add_calendar_event()
 				else:
 					# remove events where ref doc doesn't exist
-					webnotes.delete_doc("Event", webnotes.conn.sql_list("""select name from `tabEvent` 
-						where ref_type=%s and ref_name=%s""", (dt, ref_name)))
\ No newline at end of file
+					delete_events(dt, ref_name)
\ No newline at end of file
diff --git a/projects/doctype/project/project.py b/projects/doctype/project/project.py
index 94b6787..84a216c 100644
--- a/projects/doctype/project/project.py
+++ b/projects/doctype/project/project.py
@@ -19,6 +19,7 @@
 
 from webnotes.utils import flt, getdate
 from webnotes import msgprint
+from utilities.transaction_base import delete_events
 
 class DocType:
 	def __init__(self, doc, doclist=None):
@@ -69,7 +70,7 @@
 
 	def add_calendar_event(self):
 		# delete any earlier event for this project
-		self.delete_events()
+		delete_events(self.doc.doctype, self.doc.name)
 		
 		# add events
 		for milestone in self.doclist.get({"parentfield": "project_milestones"}):
@@ -87,8 +88,4 @@
 				}).insert()
 	
 	def on_trash(self):
-		self.delete_events()
-			
-	def delete_events(self):
-		webnotes.delete_doc("Event", webnotes.conn.sql_list("""select name from `tabEvent` 
-			where ref_type=%s and ref_name=%s""", (self.doc.doctype, self.doc.name)))
\ No newline at end of file
+		delete_events(self.doc.doctype, self.doc.name)
\ No newline at end of file
diff --git a/support/doctype/maintenance_schedule/maintenance_schedule.py b/support/doctype/maintenance_schedule/maintenance_schedule.py
index 06c5a47..baed6a9 100644
--- a/support/doctype/maintenance_schedule/maintenance_schedule.py
+++ b/support/doctype/maintenance_schedule/maintenance_schedule.py
@@ -26,7 +26,7 @@
 sql = webnotes.conn.sql
 	
 
-from utilities.transaction_base import TransactionBase
+from utilities.transaction_base import TransactionBase, delete_events
 
 class DocType(TransactionBase):
 	def __init__(self, doc, doclist=[]):
@@ -327,13 +327,7 @@
 			if d.serial_no:
 				self.update_amc_date(d.serial_no, '')
 		webnotes.conn.set(self.doc, 'status', 'Cancelled')
-		self.delete_events()
+		delete_events(self.doc.doctype, self.doc.name)
 		
 	def on_trash(self):
-		self.delete_events()
-		
-	def delete_events(self):
-		webnotes.delete_doc("Event", webnotes.conn.sql_list("""select name from `tabEvent` 
-			where ref_type=%s and ref_name=%s""", (self.doc.doctype, self.doc.name)))
-		
-
+		delete_events(self.doc.doctype, self.doc.name)
diff --git a/utilities/transaction_base.py b/utilities/transaction_base.py
index f9af912..0332185 100644
--- a/utilities/transaction_base.py
+++ b/utilities/transaction_base.py
@@ -303,3 +303,8 @@
 				})
 			
 			webnotes.bean(event_doclist).insert()
+
+
+def delete_events(ref_type, ref_name):
+	webnotes.delete_doc("Event", webnotes.conn.sql_list("""select name from `tabEvent` 
+		where ref_type=%s and ref_name=%s""", (ref_type, ref_name)), for_reload=True)
\ No newline at end of file