diff --git a/grammar.js b/grammar.js
index 550246b..ad0849a 100644
--- a/grammar.js
+++ b/grammar.js
@@ -150,7 +150,10 @@ module.exports = grammar({
       ':',
     ),
 
-    for_cond: $ => seq('if', $.expression),
+    for_cond: $ => seq(
+      'if',
+      $.expression,
+    ),
 
     variable_expr: $ => $.identifier,
 
diff --git a/default.nix b/shell.nix
similarity index 100%
rename from default.nix
rename to shell.nix