diff --git a/frappe/core/doctype/document_share_key/document_share_key.py b/frappe/core/doctype/document_share_key/document_share_key.py
index fc73efc0ed..4656be01c3 100644
--- a/frappe/core/doctype/document_share_key/document_share_key.py
+++ b/frappe/core/doctype/document_share_key/document_share_key.py
@@ -3,11 +3,12 @@
 
 import frappe
 from frappe.model.document import Document
+from random import randrange
 
 
 class DocumentShareKey(Document):
 	def before_insert(self):
-		self.key = frappe.generate_hash(length=32)
+		self.key = frappe.generate_hash(length=randrange(25, 35))
 		if not self.expires_on and not self.flags.no_expiry:
 			self.expires_on = frappe.utils.add_days(
 				None, days=frappe.get_system_settings("document_share_key_expiry") or 90