diff --git a/tests/misc/errors/flow/__snapshots__/jsfmt.spec.js.snap b/tests/misc/errors/flow/__snapshots__/jsfmt.spec.js.snap
index 9389c007d8f4..fa12c2728b40 100644
--- a/tests/misc/errors/flow/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/misc/errors/flow/__snapshots__/jsfmt.spec.js.snap
@@ -1,5 +1,12 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`async-arrow-invalid.js error test 1`] = `
+"Unexpected token ILLEGAL (2:1)
+  1 | <T> async () => {}
+> 2 | 
+    | ^"
+`;
+
 exports[`default-escaped.js error test 1`] = `
 "Unexpected identifier, expected the token \`{\` (1:8)
 > 1 | export asyn\\\\u{63} from \\"async\\";
diff --git a/tests/misc/errors/flow/async-arrow-invalid.js b/tests/misc/errors/flow/async-arrow-invalid.js
new file mode 100644
index 000000000000..0476a2922990
--- /dev/null
+++ b/tests/misc/errors/flow/async-arrow-invalid.js
@@ -0,0 +1 @@
+<T> async () => {}
diff --git a/tests/misc/flow-babel-only/__snapshots__/jsfmt.spec.js.snap b/tests/misc/flow-babel-only/__snapshots__/jsfmt.spec.js.snap
index 1f242e9e945b..3fd70a825c6e 100644
--- a/tests/misc/flow-babel-only/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/misc/flow-babel-only/__snapshots__/jsfmt.spec.js.snap
@@ -1,5 +1,19 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`async-arrow-invalid.js format 1`] = `
+====================================options=====================================
+parsers: ["babel"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+<T> async () => {}
+
+=====================================output=====================================
+async <T>() => {};
+
+================================================================================
+`;
+
 exports[`class_with_generics.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel"]
diff --git a/tests/misc/flow-babel-only/async-arrow-invalid.js b/tests/misc/flow-babel-only/async-arrow-invalid.js
new file mode 100644
index 000000000000..0476a2922990
--- /dev/null
+++ b/tests/misc/flow-babel-only/async-arrow-invalid.js
@@ -0,0 +1 @@
+<T> async () => {}