diff --git a/hosts/common/configs/user/console/nix-direnv/default.nix b/hosts/common/configs/user/console/nix-direnv/default.nix
index 8192106..4124139 100644
--- a/hosts/common/configs/user/console/nix-direnv/default.nix
+++ b/hosts/common/configs/user/console/nix-direnv/default.nix
@@ -36,7 +36,7 @@
               while getopts "s:h" opt; do
                 case $opt in
                   s)
-                    devshell=$OPTARG
+                    devshell="$OPTARG"
                     ;;
                   h)
                     hide=true
@@ -55,9 +55,9 @@
                 echo "use flake self#$devshell" > .envrc
               fi
 
-              if hide && git rev-parse --is-inside-work-tree &>/dev/null; then
+              if "$hide" && git rev-parse --is-inside-work-tree &>/dev/null; then
                 local top
-                top=$(git rev-parse --show-toplevel)
+                top="$(git rev-parse --show-toplevel)"
                 if ! grep -q "^\.envrc$" "$top/.gitignore" "$top/.git/info/exclude"; then echo "$(realpath --relative-to="$top" .envrc)" >> "$top/.git/info/exclude"; fi
                 if [ -z "$devshell" ]; then
                   if ! grep -q "^flake.nix$" "$top/.gitignore" "$top/.git/info/exclude"; then echo "flake.nix" >> "$top/.git/info/exclude"; fi