diff --git a/kernel/api/workspace.go b/kernel/api/workspace.go
index f7c0cd54a..6a416b043 100644
--- a/kernel/api/workspace.go
+++ b/kernel/api/workspace.go
@@ -227,5 +227,8 @@ func isInvalidWorkspacePath(absPath string) bool {
 	if "" == name {
 		return true
 	}
+	if !gulu.File.IsValidFilename(name) {
+		return true
+	}
 	return "siyuan" == name || "conf" == name || "home" == name || "data" == name || "temp" == name
 }