diff --git a/erpnext/stock/report/stock_ageing/stock_ageing.py b/erpnext/stock/report/stock_ageing/stock_ageing.py
index 803a5c81a3b..99d816c4a24 100644
--- a/erpnext/stock/report/stock_ageing/stock_ageing.py
+++ b/erpnext/stock/report/stock_ageing/stock_ageing.py
@@ -178,14 +178,14 @@ def get_fifo_queue(filters, sle=None):
 				qty_to_pop = abs(d.actual_qty)
 				while qty_to_pop:
 					batch = fifo_queue[0] if fifo_queue else [0, None]
-					if 0 < batch[0] <= qty_to_pop:
+					if 0 < flt(batch[0]) <= qty_to_pop:
 						# if batch qty > 0
 						# not enough or exactly same qty in current batch, clear batch
-						qty_to_pop -= batch[0]
+						qty_to_pop -= flt(batch[0])
 						transferred_item_details[(d.voucher_no, d.name)].append(fifo_queue.pop(0))
 					else:
 						# all from current batch
-						batch[0] -= qty_to_pop
+						batch[0] = flt(batch[0]) - qty_to_pop
 						transferred_item_details[(d.voucher_no, d.name)].append([qty_to_pop, batch[1]])
 						qty_to_pop = 0