diff --git a/weed/mount/unmount/unmount_std.go b/weed/mount/unmount/unmount_std.go
index 76267fb6a..410eb1235 100644
--- a/weed/mount/unmount/unmount_std.go
+++ b/weed/mount/unmount/unmount_std.go
@@ -1,5 +1,5 @@
-//go:build !linux
-// +build !linux
+//go:build !linux && !windows
+// +build !linux,!windows
 
 package unmount
 
diff --git a/weed/mount/unmount/unmount_unsupported.go b/weed/mount/unmount/unmount_unsupported.go
new file mode 100644
index 000000000..d0a94cc4a
--- /dev/null
+++ b/weed/mount/unmount/unmount_unsupported.go
@@ -0,0 +1,8 @@
+//go:build windows
+// +build windows
+
+package unmount
+
+func unmount(dir string) error {
+	return nil
+}