diff --git a/erpnext/accounts/doctype/pricing_rule/utils.py b/erpnext/accounts/doctype/pricing_rule/utils.py
index 1f29d73..11ae540 100644
--- a/erpnext/accounts/doctype/pricing_rule/utils.py
+++ b/erpnext/accounts/doctype/pricing_rule/utils.py
@@ -121,6 +121,12 @@
 				values["variant_of"] = args.variant_of
 	elif apply_on_field == "item_group":
 		item_conditions = _get_tree_conditions(args, "Item Group", child_doc, False)
+		if args.get("uom", None):
+			item_conditions += (
+				" and ({child_doc}.uom='{item_uom}' or IFNULL({child_doc}.uom, '')='')".format(
+					child_doc=child_doc, item_uom=args.get("uom")
+				)
+			)
 
 	conditions += get_other_conditions(conditions, values, args)
 	warehouse_conditions = _get_tree_conditions(args, "Warehouse", "`tabPricing Rule`")