diff --git a/kernel/api/setting.go b/kernel/api/setting.go
index 079c07969..2664f79e1 100644
--- a/kernel/api/setting.go
+++ b/kernel/api/setting.go
@@ -167,7 +167,7 @@ func setFiletree(c *gin.Context) {
 	}
 
 	if 1 > fileTree.MaxOpenTabCount {
-		fileTree.MaxOpenTabCount = 12
+		fileTree.MaxOpenTabCount = 8
 	}
 	if 32 < fileTree.MaxOpenTabCount {
 		fileTree.MaxOpenTabCount = 32
diff --git a/kernel/conf/filetree.go b/kernel/conf/filetree.go
index 9cfc03dac..80435791a 100644
--- a/kernel/conf/filetree.go
+++ b/kernel/conf/filetree.go
@@ -40,7 +40,7 @@ func NewFileTree() *FileTree {
 		Sort:                   util.SortModeCustom,
 		CreateDocNameTemplate:  "",
 		MaxListCount:           512,
-		MaxOpenTabCount:        12,
+		MaxOpenTabCount:        8,
 		AllowCreateDeeper:      false,
 	}
 }
diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index fc78fee7d..8a677b610 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -131,7 +131,7 @@ func InitConf() {
 		Conf.FileTree.MaxListCount = 512
 	}
 	if 1 > Conf.FileTree.MaxOpenTabCount {
-		Conf.FileTree.MaxOpenTabCount = 12
+		Conf.FileTree.MaxOpenTabCount = 8
 	}
 	if 32 < Conf.FileTree.MaxOpenTabCount {
 		Conf.FileTree.MaxOpenTabCount = 32