diff --git a/erpnext/controllers/stock_controller.py b/erpnext/controllers/stock_controller.py
index 78a6e52e4d7..4697205d72d 100644
--- a/erpnext/controllers/stock_controller.py
+++ b/erpnext/controllers/stock_controller.py
@@ -591,7 +591,7 @@ def future_sle_exists(args, sl_entries=None):
 
 	data = frappe.db.sql("""
 		select item_code, warehouse, count(name) as total_row
-		from `tabStock Ledger Entry`
+		from `tabStock Ledger Entry` force index (item_warehouse)
 		where
 			({})
 			and timestamp(posting_date, posting_time)
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
index caa1d42b662..e7b61b0639f 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -182,3 +182,4 @@ def on_doctype_update():
 	frappe.db.add_index("Stock Ledger Entry", ["voucher_no", "voucher_type"])
 	frappe.db.add_index("Stock Ledger Entry", ["batch_no", "item_code", "warehouse"])
 	frappe.db.add_index("Stock Ledger Entry", ["voucher_detail_no"])
+	frappe.db.add_index("Stock Ledger Entry", ["item_code", "warehouse"], "item_warehouse")
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index 8e364a5062e..2114e68a21e 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -910,7 +910,7 @@ def get_valuation_rate(item_code, warehouse, voucher_type, voucher_no,
 		company = erpnext.get_default_company()
 
 	last_valuation_rate = frappe.db.sql("""select valuation_rate
-		from `tabStock Ledger Entry`
+		from `tabStock Ledger Entry` force index (item_warehouse)
 		where
 			item_code = %s
 			AND warehouse = %s
@@ -921,7 +921,7 @@ def get_valuation_rate(item_code, warehouse, voucher_type, voucher_no,
 	if not last_valuation_rate:
 		# Get valuation rate from last sle for the item against any warehouse
 		last_valuation_rate = frappe.db.sql("""select valuation_rate
-			from `tabStock Ledger Entry`
+			from `tabStock Ledger Entry` force index (item_code)
 			where
 				item_code = %s
 				AND valuation_rate > 0