diff --git a/grammar.js b/grammar.js
index 39340ed..d49fbec 100644
--- a/grammar.js
+++ b/grammar.js
@@ -46,7 +46,7 @@ module.exports = grammar({
   ],
 
   rules: {
-    source_file: $ => seq($._block),
+    source_file: $ => $._block,
 
     _block: $ => seq(
       $._block_start,
diff --git a/src/grammar.json b/src/grammar.json
index df8800e..99f81a3 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -2,13 +2,8 @@
   "name": "slim",
   "rules": {
     "source_file": {
-      "type": "SEQ",
-      "members": [
-        {
-          "type": "SYMBOL",
-          "name": "_block"
-        }
-      ]
+      "type": "SYMBOL",
+      "name": "_block"
     },
     "_block": {
       "type": "SEQ",