diff --git a/lib/rules/arrow-parens.js b/lib/rules/arrow-parens.js
index 60a043bb31b..d8ca0ecafb2 100644
--- a/lib/rules/arrow-parens.js
+++ b/lib/rules/arrow-parens.js
@@ -66,7 +66,10 @@ module.exports = {
              */
             function fixParamsWithParenthesis(fixer) {
                 const paramToken = sourceCode.getTokenAfter(firstTokenOfParam);
-                const closingParenToken = sourceCode.getTokenAfter(paramToken);
+
+                // ES8 allows Trailing commas in function parameter lists and calls
+                // https://github.com/eslint/eslint/issues/8834
+                const closingParenToken = sourceCode.getTokenAfter(paramToken, astUtils.isClosingParenToken);
                 const asyncToken = isAsync ? sourceCode.getTokenBefore(firstTokenOfParam) : null;
                 const shouldAddSpaceForAsync = asyncToken && (asyncToken.end === firstTokenOfParam.start);
 
diff --git a/tests/lib/rules/arrow-parens.js b/tests/lib/rules/arrow-parens.js
index a209d08c3eb..3fcd6fda606 100644
--- a/tests/lib/rules/arrow-parens.js
+++ b/tests/lib/rules/arrow-parens.js
@@ -164,6 +164,18 @@ const invalid = [
             type
         }]
     },
+    {
+        code: "(a,) => a",
+        output: "a => a",
+        options: ["as-needed"],
+        parserOptions: { ecmaVersion: 8 },
+        errors: [{
+            line: 1,
+            column: 1,
+            message: asNeededMessage,
+            type
+        }]
+    },
     {
         code: "async (a) => a",
         output: "async a => a",