diff --git a/nixos/common/system-tools.nix b/nixos/common/system-tools.nix
index 2e73897..99bae23 100644
--- a/nixos/common/system-tools.nix
+++ b/nixos/common/system-tools.nix
@@ -13,6 +13,7 @@
       ranger  # console file manager
       htop    # system monitor
       scrot   # screenshot
+      direnv  # load environment
 
       # HTTP
       curl    # transfer dato to/from server