diff --git a/packages/babel-generator/src/generators/methods.js b/packages/babel-generator/src/generators/methods.js
index 1019aba04c7c..e9d0c67bded7 100644
--- a/packages/babel-generator/src/generators/methods.js
+++ b/packages/babel-generator/src/generators/methods.js
@@ -112,7 +112,7 @@ export function ArrowFunctionExpression(node: Object) {
     !hasTypes(node, firstParam)
   ) {
     if (
-      this.format.retainLines &&
+      (this.format.retainLines || node.async) &&
       node.loc &&
       node.body.loc &&
       node.loc.start.line < node.body.loc.start.line
diff --git a/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/input.js b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/input.js
new file mode 100644
index 000000000000..e47e7f048eb5
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/input.js
@@ -0,0 +1,10 @@
+const x = async (
+  // some comment
+  a
+) => {
+  return foo(await a);
+};
+
+function foo(a) {
+  return a;
+}
diff --git a/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/options.json b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/options.json
new file mode 100644
index 000000000000..0967ef424bce
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/options.json
@@ -0,0 +1 @@
+{}
diff --git a/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/output.js b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/output.js
new file mode 100644
index 000000000000..eaf8a9076d5a
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/parentheses/async-arrow-function/output.js
@@ -0,0 +1,8 @@
+const x = async ( // some comment
+  a) => {
+  return foo(await a);
+};
+
+function foo(a) {
+  return a;
+}