diff --git a/MSDKDns/CacheManager/MSDKDnsParamsManager.m b/MSDKDns/CacheManager/MSDKDnsParamsManager.m
index 5487e72..5153fc4 100644
--- a/MSDKDns/CacheManager/MSDKDnsParamsManager.m
+++ b/MSDKDns/CacheManager/MSDKDnsParamsManager.m
@@ -63,6 +63,7 @@ - (id) init {
         _msdkAddressType = HttpDnsAddressTypeAuto;
         _enableKeepDomainsAlive = YES;
         _expiredIPEnabled = NO;
+        _persistCacheIPEnabled = NO;
         _enableDetectHostServer = NO;
     }
     return self;