diff --git a/grammar.js b/grammar.js
index 47af69f..39340ed 100644
--- a/grammar.js
+++ b/grammar.js
@@ -4,6 +4,7 @@
 const make_attr_delimited = (token_suffix) => {
   return ($) => choice(
     seq('*', alias($[`_attr_value_ruby_${token_suffix}`], $.attr_splat)),
+    $.attr_boolean,
     seq(
       field('name', $.attr_name),
       field('assignment', choice($.attr_assignment, $.attr_assignment_noescape)),
@@ -163,6 +164,7 @@ module.exports = grammar({
       $._attr_value_ruby
       // TODO: many more
     ),
+    attr_boolean: $ => $.attr_name,
 
     element_text: $ => seq(
       optional($._space),
diff --git a/src/grammar.json b/src/grammar.json
index c02fcce..df8800e 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -614,6 +614,10 @@
             }
           ]
         },
+        {
+          "type": "SYMBOL",
+          "name": "attr_boolean"
+        },
         {
           "type": "SEQ",
           "members": [
@@ -694,6 +698,10 @@
             }
           ]
         },
+        {
+          "type": "SYMBOL",
+          "name": "attr_boolean"
+        },
         {
           "type": "SEQ",
           "members": [
@@ -774,6 +782,10 @@
             }
           ]
         },
+        {
+          "type": "SYMBOL",
+          "name": "attr_boolean"
+        },
         {
           "type": "SEQ",
           "members": [
@@ -923,6 +935,10 @@
         }
       ]
     },
+    "attr_boolean": {
+      "type": "SYMBOL",
+      "name": "attr_name"
+    },
     "element_text": {
       "type": "SEQ",
       "members": [
diff --git a/src/node-types.json b/src/node-types.json
index 9ded81d..e6bbfd7 100644
--- a/src/node-types.json
+++ b/src/node-types.json
@@ -42,6 +42,10 @@
       "multiple": false,
       "required": false,
       "types": [
+        {
+          "type": "attr_boolean",
+          "named": true
+        },
         {
           "type": "attr_splat",
           "named": true
@@ -49,6 +53,21 @@
       ]
     }
   },
+  {
+    "type": "attr_boolean",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": false,
+      "required": true,
+      "types": [
+        {
+          "type": "attr_name",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "attr_name",
     "named": true,
diff --git a/test/corpus/attributes.txt b/test/corpus/attributes.txt
index 5427da3..3635fc9 100644
--- a/test/corpus/attributes.txt
+++ b/test/corpus/attributes.txt
@@ -169,3 +169,19 @@ a[*attrs]
     (attrs
       (attr
         (attr_splat)))))
+
+==================
+Boolean attributes
+==================
+
+button[disabled]
+
+-----
+
+(source_file
+  (element
+    (tag_name)
+    (attrs
+      (attr
+        (attr_boolean
+          (attr_name))))))