diff --git a/core/logs/alils/config.go b/core/logs/alils/config.go
index d0b67c24..558db6a8 100755
--- a/core/logs/alils/config.go
+++ b/core/logs/alils/config.go
@@ -7,7 +7,7 @@ const (
 	// OffsetNewest is the log head offset, i.e. the offset that will be
 	// assigned to the next message that will be produced to the shard.
 	OffsetNewest = "end"
-	// OffsetOldest is the the oldest offset available on the logstore for a
+	// OffsetOldest is the oldest offset available on the logstore for a
 	// shard.
 	OffsetOldest = "begin"
 )
diff --git a/core/logs/log.go b/core/logs/log.go
index 2dedc768..0cb798ac 100644
--- a/core/logs/log.go
+++ b/core/logs/log.go
@@ -188,7 +188,7 @@ func (bl *BeeLogger) AsyncNonBlockWrite() *BeeLogger {
 }
 
 // SetLogger provides a given logger adapter into BeeLogger with config string.
-// config must in in JSON format like {"interval":360}}
+// config must in JSON format like {"interval":360}}
 func (bl *BeeLogger) setLogger(adapterName string, configs ...string) error {
 	config := append(configs, "{}")[0]
 	for _, l := range bl.outputs {
@@ -223,7 +223,7 @@ func (bl *BeeLogger) setLogger(adapterName string, configs ...string) error {
 }
 
 // SetLogger provides a given logger adapter into BeeLogger with config string.
-// config must in in JSON format like {"interval":360}}
+// config must in JSON format like {"interval":360}}
 func (bl *BeeLogger) SetLogger(adapterName string, configs ...string) error {
 	bl.lock.Lock()
 	defer bl.lock.Unlock()