diff --git a/grammar.js b/grammar.js
index 09d8a72..ead1555 100644
--- a/grammar.js
+++ b/grammar.js
@@ -1,5 +1,5 @@
 module.exports = grammar({
-  name: 'nixshell',
+  name: 'nix_shell',
 
   rules: {
     // TODO: allow trailing whitespace on any line