diff --git a/README.md b/README.md
index b742de7..ba82e4c 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 This is an ESLint Plugin to help provide best practices for writing Custom Elements aka Web Components. It provides a set of custom rules which can be enforced for files that declare classes that extend from HTMLElement.
 
+## Requirements
+
+Node 14.x
+
 ## Installation
 
 ```sh
@@ -10,13 +14,12 @@ $ npm install --save-dev eslint eslint-plugin-custom-elements
 
 ## Setup
 
-Add `custom-elements` to your list of plugins in your ESLint config, and `plugin:custom-elements/recommended` to the `extends` array.
+Add `custom-elements` to your list of plugins in your ESLint config, and enable the rules you want or just add `plugin:custom-elements/recommended` to the `extends` array.
 
 JSON ESLint config example:
 
 ```json
 {
-  "plugins": ["custom-elements"],
   "extends": ["plugin:custom-elements/recommended"]
 }
 ```
diff --git a/lib/configs/minimal.js b/lib/configs/minimal.js
index 758d1a6..05be309 100644
--- a/lib/configs/minimal.js
+++ b/lib/configs/minimal.js
@@ -6,6 +6,7 @@ module.exports = {
   env: {
     es2021: true
   },
+  plugins: ['custom-elements'],
   rules: Object.fromEntries(
     Object.keys(rules)
       .filter(r => rules[r].meta.type === 'problem')
diff --git a/lib/configs/recommended.js b/lib/configs/recommended.js
index 316b146..29bfa90 100644
--- a/lib/configs/recommended.js
+++ b/lib/configs/recommended.js
@@ -6,5 +6,6 @@ module.exports = {
   env: {
     es2021: true
   },
+  plugins: ['custom-elements'],
   rules: Object.fromEntries(Object.keys(rules).map(r => [`custom-elements/${r}`, 'error']))
 }
diff --git a/lib/rules/valid-tag-name.js b/lib/rules/valid-tag-name.js
index 77370db..b19a48f 100644
--- a/lib/rules/valid-tag-name.js
+++ b/lib/rules/valid-tag-name.js
@@ -25,6 +25,10 @@ module.exports = {
       [s.customElements.define](node) {
         const nameArg = node.arguments[0]
         let name = nameArg.value
+        if (!['Literal', 'TemplateLiteral'].includes(nameArg.type)) {
+          context.report(nameArg, 'Expected custom element name to be a string literal')
+          return
+        }
         if (nameArg.type === 'TemplateLiteral') {
           // Give up on TemplateLiteral expressions
           if (nameArg.expressions.length) return
diff --git a/package-lock.json b/package-lock.json
index b966006..e347e62 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "eslint-plugin-custom-elements",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "0.0.2",
+      "version": "0.0.3",
       "license": "MIT",
       "dependencies": {
         "eslint-rule-documentation": ">=1.0.0"
diff --git a/package.json b/package.json
index e8b39aa..a29d1af 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-custom-elements",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "A collection of eslint rules for custom-elements",
   "homepage": "https://github.com/github/eslint-plugin-custom-elements#readme",
   "bugs": {
diff --git a/test/valid-tag-name.js b/test/valid-tag-name.js
index c4fdb9b..fc7f751 100644
--- a/test/valid-tag-name.js
+++ b/test/valid-tag-name.js
@@ -18,6 +18,15 @@ ruleTester.run('valid-tag-name', rule, {
     {code: 'customElements.define("ng-bar")', options: [{disallowNamespaces: true, prefix: 'ng'}]}
   ],
   invalid: [
+    {
+      code: 'const tagName = "foo-bar"; customElements.define(tagName)',
+      errors: [
+        {
+          message: 'Expected custom element name to be a string literal',
+          type: 'Identifier'
+        }
+      ]
+    },
     {
       code: 'customElements.define("foo")',
       errors: [