diff --git a/statistics/histogram.go b/statistics/histogram.go
index 203cf0b83f02a..cfa9db65200df 100644
--- a/statistics/histogram.go
+++ b/statistics/histogram.go
@@ -306,6 +306,7 @@ func (hg *Histogram) BinarySearchRemoveVal(valCntPairs TopNMeta) {
 		if hg.Buckets[midIdx].Count < 0 {
 			hg.Buckets[midIdx].Count = 0
 		}
+		break
 	}
 }