diff --git a/home-manager/modules/alacritty.nix b/home-manager/modules/alacritty.nix
index dda085f..0f92e4c 100644
--- a/home-manager/modules/alacritty.nix
+++ b/home-manager/modules/alacritty.nix
@@ -7,6 +7,7 @@
           family = "FiraCode Nerd Font Mono";
         };
       };
+      terminal = {shell = "${pkgs.zsh}/bin/zsh";};
     };
   };
 
diff --git a/home-manager/modules/zsh/zshrc b/home-manager/modules/zsh/zshrc
index ec173d4..d81ad0e 100644
--- a/home-manager/modules/zsh/zshrc
+++ b/home-manager/modules/zsh/zshrc
@@ -30,3 +30,7 @@ bindkey '^X^E' edit-command-line
 bindkey -e
 
 PATH="$PATH:$HOME/.cargo/bin"
+
+if [[ -z "$TMUX" ]]; then
+    tmux new-session -A -s default
+fi