diff --git a/docs/nixos-with-flakes/update-the-system.md b/docs/nixos-with-flakes/update-the-system.md
index 3d14296..271cfc3 100644
--- a/docs/nixos-with-flakes/update-the-system.md
+++ b/docs/nixos-with-flakes/update-the-system.md
@@ -7,7 +7,7 @@ or any other place where you keep the configuration.):
 # Update flake.lock
 nix flake update
 # Apply the updates
-sudo nixos-rebuild switch
+sudo nixos-rebuild switch --flake .
 ```
 
 Sometimes, you may encounter a sha256 mismatch error when running `nixos-rebuild switch`. This can be resolved by updating `flake.lock` through `nix flake update`.
diff --git a/docs/zh/nixos-with-flakes/update-the-system.md b/docs/zh/nixos-with-flakes/update-the-system.md
index 2f2befc..2f17186 100644
--- a/docs/zh/nixos-with-flakes/update-the-system.md
+++ b/docs/zh/nixos-with-flakes/update-the-system.md
@@ -6,7 +6,7 @@
 # 更新 flake.lock
 nix flake update
 # 部署系统
-sudo nixos-rebuild switch
+sudo nixos-rebuild switch --flake .
 ```
 
 另外有时候安装新的包，跑 `sudo nixos-rebuild switch` 时可能会遇到 sha256 不匹配的报错，也可以尝试通过 `nix flake update` 更新 flake.lock 来解决（原理暂时不太清楚）。