diff --git a/packages/babel-helper-remap-async-to-generator/src/index.js b/packages/babel-helper-remap-async-to-generator/src/index.js
index ee16627eb5..d3650c066f 100644
--- a/packages/babel-helper-remap-async-to-generator/src/index.js
+++ b/packages/babel-helper-remap-async-to-generator/src/index.js
@@ -87,6 +87,7 @@ function plainFunction(path: NodePath, callId: Object) {
         t.callExpression(container, [])
       )
     ]);
+    declar._blockHoist = true;
 
     retFunction.id = asyncFnId;
     path.replaceWith(declar);
diff --git a/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/actual.js b/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/actual.js
index 2b301a1500..e422835657 100644
--- a/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/actual.js
+++ b/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/actual.js
@@ -1,5 +1,3 @@
-function normalFunction() {}
-
 async function foo() {
   var wat = await bar();
 }
diff --git a/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/expected.js b/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/expected.js
index 6f6a08626b..51140320d4 100644
--- a/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/expected.js
+++ b/packages/babel-plugin-transform-async-to-generator/test/fixtures/async-to-generator/statement/expected.js
@@ -1,5 +1,3 @@
-function normalFunction() {}
-
 let foo = function () {
   var ref = babelHelpers.asyncToGenerator(function* () {
     var wat = yield bar();