diff --git a/erpnext/selling/report/sales_analytics/sales_analytics.py b/erpnext/selling/report/sales_analytics/sales_analytics.py
index 605d2fac44f0db696f0b4f460e8ed09d9f178635..a71b4c5627d177db2c51e630378c39d4a2d7991f 100644
--- a/erpnext/selling/report/sales_analytics/sales_analytics.py
+++ b/erpnext/selling/report/sales_analytics/sales_analytics.py
@@ -378,8 +378,8 @@ class Analytics(object):
 		)
 
 		for d in self.group_entries:
-			if d.parent:
-				self.depth_map.setdefault(d.name, self.depth_map.get(d.parent) + 1)
+			if d.parent and (depth_map := self.depth_map.get(d.parent)):  # @dokos
+				self.depth_map.setdefault(d.name, depth_map + 1)  # @dokos
 			else:
 				self.depth_map.setdefault(d.name, 0)
 
@@ -397,8 +397,8 @@ class Analytics(object):
 		)
 
 		for d in self.group_entries:
-			if d.parent:
-				self.depth_map.setdefault(d.name, self.depth_map.get(d.parent) + 1)
+			if d.parent and (depth_map := self.depth_map.get(d.parent)):  # @dokos
+				self.depth_map.setdefault(d.name, depth_map + 1)  # @dokos
 			else:
 				self.depth_map.setdefault(d.name, 0)