diff --git a/statistics/handle/handle.go b/statistics/handle/handle.go
index b483d23c1cdfb..8462799bf2a77 100644
--- a/statistics/handle/handle.go
+++ b/statistics/handle/handle.go
@@ -463,7 +463,7 @@ type sessionPool interface {
 func NewHandle(ctx sessionctx.Context, lease time.Duration, pool sessionPool, tracker sessionctx.SysProcTracker, serverIDGetter func() uint64) (*Handle, error) {
 	cfg := config.GetGlobalConfig()
 	handle := &Handle{
-		ddlEventCh:       make(chan *ddlUtil.Event, 100),
+		ddlEventCh:       make(chan *ddlUtil.Event, 1000),
 		listHead:         &SessionStatsCollector{mapper: make(tableDeltaMap), rateMap: make(errorRateDeltaMap)},
 		idxUsageListHead: &SessionIndexUsageCollector{mapper: make(indexUsageMap)},
 		pool:             pool,