diff --git a/home/config.go b/home/config.go
index cb586131..78c5dfda 100644
--- a/home/config.go
+++ b/home/config.go
@@ -77,9 +77,9 @@ type dnsConfig struct {
 	// time interval for statistics (in days)
 	StatsInterval uint32 `yaml:"statistics_interval"`
 
-	QueryLogEnabled  bool   `yaml:"querylog_enabled"`  // if true, query log is enabled
-	QueryLogInterval uint32 `yaml:"querylog_interval"` // time interval for query log (in days)
-	QueryLogMemSize  uint32 `yaml:"querylog_memsize"`  // number of entries kept in memory before they are flushed to disk
+	QueryLogEnabled  bool   `yaml:"querylog_enabled"`     // if true, query log is enabled
+	QueryLogInterval uint32 `yaml:"querylog_interval"`    // time interval for query log (in days)
+	QueryLogMemSize  uint32 `yaml:"querylog_size_memory"` // number of entries kept in memory before they are flushed to disk
 
 	dnsforward.FilteringConfig `yaml:",inline"`
 
diff --git a/home/home_test.go b/home/home_test.go
index db8f4f49..8a46e493 100644
--- a/home/home_test.go
+++ b/home/home_test.go
@@ -28,7 +28,7 @@ dns:
   statistics_interval: 90
   querylog_enabled: true
   querylog_interval: 90
-  querylog_memsize: 0
+  querylog_size_memory: 0
   protection_enabled: true
   blocking_mode: null_ip
   blocked_response_ttl: 0
diff --git a/querylog/qlog.go b/querylog/qlog.go
index 21d5a1a6..2cf1c013 100644
--- a/querylog/qlog.go
+++ b/querylog/qlog.go
@@ -65,6 +65,7 @@ func checkInterval(days uint32) bool {
 func (l *queryLog) WriteDiskConfig(dc *DiskConfig) {
 	dc.Enabled = l.conf.Enabled
 	dc.Interval = l.conf.Interval
+	dc.MemSize = l.conf.MemSize
 }
 
 // Clear memory buffer and remove log files