diff --git a/erpnext/projects/doctype/time_log/test_time_log.py b/erpnext/projects/doctype/time_log/test_time_log.py
index 1894e37..8d5694f 100644
--- a/erpnext/projects/doctype/time_log/test_time_log.py
+++ b/erpnext/projects/doctype/time_log/test_time_log.py
@@ -105,7 +105,7 @@
 		task_name = frappe.db.get_value("Task",{"project": "_Test Project 1"})
 
 		time_log = make_time_log_test_record(employee="_T-Employee-0002", hours=2,
-			task=task_name)
+			task=task_name, simulate=1)
 		self.assertEqual(time_log.costing_rate, 50)
 		self.assertEqual(time_log.costing_amount, 100)
 		self.assertEqual(time_log.billing_rate, 100)
@@ -115,7 +115,7 @@
 		self.assertEqual(frappe.db.get_value("Project", "_Test Project 1", "total_billing_amount"), 200)
 
 		time_log2 = make_time_log_test_record(employee="_T-Employee-0002",
-			hours=2, task= task_name, from_time = now_datetime() + datetime.timedelta(hours= 3))
+			hours=2, task= task_name, from_time = now_datetime() + datetime.timedelta(hours= 3), simulate=1)
 		self.assertEqual(frappe.db.get_value("Task", task_name, "total_billing_amount"), 400)
 		self.assertEqual(frappe.db.get_value("Project", "_Test Project 1", "total_billing_amount"), 400)
 
diff --git a/erpnext/projects/doctype/time_log/time_log.py b/erpnext/projects/doctype/time_log/time_log.py
index c2239df..6763209 100644
--- a/erpnext/projects/doctype/time_log/time_log.py
+++ b/erpnext/projects/doctype/time_log/time_log.py
@@ -4,7 +4,7 @@
 from __future__ import unicode_literals
 import frappe
 from frappe import _
-from frappe.utils import cstr, flt, get_datetime, get_time, getdate
+from frappe.utils import flt, get_datetime, get_time, getdate
 from dateutil.relativedelta import relativedelta
 from erpnext.manufacturing.doctype.manufacturing_settings.manufacturing_settings import get_mins_between_operations
 
@@ -93,14 +93,12 @@
 				(%(from_time)s > from_time and %(from_time)s < to_time) or
 				(%(from_time)s = from_time and %(to_time)s = to_time))
 			and name!=%(name)s
-			and ifnull(task, "")=%(task)s
 			and docstatus < 2""".format(fieldname),
 			{
 				"val": self.get(fieldname),
 				"from_time": self.from_time,
 				"to_time": self.to_time,
-				"name": self.name or "No Name",
-				"task": cstr(self.task)
+				"name": self.name or "No Name"
 			}, as_dict=True)
 
 		return existing[0] if existing else None