diff --git a/modules/shell/tools.nix b/modules/shell/tools.nix
index c5fff76..65dc94d 100644
--- a/modules/shell/tools.nix
+++ b/modules/shell/tools.nix
@@ -73,9 +73,10 @@
       smartmontools # check hard drie health
     ];
     environment.variables = {
-      HISTFILE = "$XDG_STATE_HOME/bash/history";
+      TEST = "AHHH";
+      HISTFILE = "\${XDG_STATE_HOME}/bash/history";
       LESSHISTFILE = "-";
-      RIPGREP_CONFIG_PATH = "$XDG_CONFIG_HOME/ripgrep/ripgreprc";
+      RIPGREP_CONFIG_PATH = "\${XDG_CONFIG_HOME}/ripgrep/ripgreprc";
     };
   };
 }