diff --git a/erpnext/projects/doctype/project/project.py b/erpnext/projects/doctype/project/project.py
index 9654ca3..dcf485a 100644
--- a/erpnext/projects/doctype/project/project.py
+++ b/erpnext/projects/doctype/project/project.py
@@ -162,7 +162,7 @@
 	def is_row_updated(self, row, existing_task_data, fields):
 		if self.get("__islocal") or not existing_task_data: return True
 
-		d = existing_task_data.get(row.task_id)
+		d = existing_task_data.get(row.task_id, {})
 
 		for field in fields:
 			if row.get(field) != d.get(field):