From 5f0cdbda1ecbc2e2e4ca8c198d5cd5d98e321268 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sun, 16 Jun 2019 14:27:25 +0530
Subject: [PATCH] Scope: minor fix done.

---
 DnsServerCore/Dhcp/Scope.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/DnsServerCore/Dhcp/Scope.cs b/DnsServerCore/Dhcp/Scope.cs
index 6a88bd30..b548334f 100644
--- a/DnsServerCore/Dhcp/Scope.cs
+++ b/DnsServerCore/Dhcp/Scope.cs
@@ -646,7 +646,8 @@ namespace DnsServerCore.Dhcp
                     expiredLeases.Add(expiredLease);
             }
 
-            _lastModified = DateTime.UtcNow;
+            if (expiredLeaseKeys.Count > 0)
+                _lastModified = DateTime.UtcNow;
 
             return expiredLeases;
         }