diff --git a/api/coreservice.go b/api/coreservice.go
index 41ec832124..e0236b3af8 100644
--- a/api/coreservice.go
+++ b/api/coreservice.go
@@ -1401,12 +1401,6 @@ func (core *coreService) LogsInRange(filter *logfilter.LogFilter, start, end, pa
 	if err != nil {
 		return nil, nil, err
 	}
-	if paginationSize == 0 {
-		paginationSize = 1000
-	}
-	if paginationSize > 5000 {
-		paginationSize = 5000
-	}
 	// getLogs via range Blooom filter [start, end]
 	blockNumbers, err := core.bfIndexer.FilterBlocksInRange(filter, start, end, paginationSize)
 	if err != nil {