diff --git a/grammar.js b/grammar.js
index 2d7e762..ed8e542 100644
--- a/grammar.js
+++ b/grammar.js
@@ -437,9 +437,7 @@ module.exports = grammar({
 
     escape_sequence: _ => token.immediate(seq(
       '\\',
-      choice(
-        /('|"|\\|n|\n|0|r|t|\{|\})/,
-      )
+      /('|"|\\|n|\n|0|r|t|\{|\})/,
     )),
 
     raw_string: $ => seq(
diff --git a/src/grammar.json b/src/grammar.json
index 7ed8b7a..9763e12 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -2228,13 +2228,8 @@
             "value": "\\"
           },
           {
-            "type": "CHOICE",
-            "members": [
-              {
-                "type": "PATTERN",
-                "value": "('|\"|\\\\|n|\\n|0|r|t|\\{|\\})"
-              }
-            ]
+            "type": "PATTERN",
+            "value": "('|\"|\\\\|n|\\n|0|r|t|\\{|\\})"
           }
         ]
       }