diff --git a/packages/@vue/cli-plugin-eslint/eslintOptions.js b/packages/@vue/cli-plugin-eslint/eslintOptions.js
index 5c2896a0f0..9b20caf9a8 100644
--- a/packages/@vue/cli-plugin-eslint/eslintOptions.js
+++ b/packages/@vue/cli-plugin-eslint/eslintOptions.js
@@ -25,6 +25,13 @@ function makeJSOnlyValue (str) {
 }
 
 const baseExtensions = ['.js', '.jsx', '.vue']
-exports.extensions = api => api.hasPlugin('typescript')
-  ? baseExtensions.concat('.ts', '.tsx')
-  : baseExtensions
+exports.extensions = api => {
+  let extensions = baseExtensions
+  if (api.hasPlugin('typescript')) {
+    extensions = extensions.concat('.ts', '.tsx')
+  }
+  if (api.hasPlugin('coffee')) {
+    extensions = extensions.concat('.coffee')
+  }
+  return extensions
+}
diff --git a/packages/@vue/cli-plugin-eslint/index.js b/packages/@vue/cli-plugin-eslint/index.js
index addc5d0358..54a94d69e0 100644
--- a/packages/@vue/cli-plugin-eslint/index.js
+++ b/packages/@vue/cli-plugin-eslint/index.js
@@ -41,7 +41,7 @@ module.exports = (api, options) => {
             .add(/node_modules/)
             .add(path.dirname(require.resolve('@vue/cli-service')))
             .end()
-          .test(/\.(vue|(j|t)sx?)$/)
+          .test(/\.(vue|(j|t)sx?|coffee)$/)
           .use('eslint-loader')
             .loader(require.resolve('eslint-loader'))
             .options({