3 files changed, 5 insertions, 4 deletions
diff --git a/std/node/_fs/promises/_fs_readFile.ts b/std/node/_fs/promises/_fs_readFile.ts
index 83ef9ac50..8677e05cd 100644
--- a/std/node/_fs/promises/_fs_readFile.ts
+++ b/std/node/_fs/promises/_fs_readFile.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import {
+import type {
   FileOptionsArgument,
   BinaryOptionsArgument,
   TextOptionsArgument,
@@ -21,8 +21,9 @@ export function readFile(
   return new Promise((resolve, reject) => {
     readFileCallback(path, options, (err, data): void => {
       if (err) return reject(err);
-      if (data == null)
+      if (data == null) {
         return reject(new Error("Invalid state: data missing, but no error"));
+      }
       resolve(data);
     });
   });
diff --git a/std/node/_fs/promises/_fs_writeFile.ts b/std/node/_fs/promises/_fs_writeFile.ts
index 4f7c39a6a..48b9bf0ea 100644
--- a/std/node/_fs/promises/_fs_writeFile.ts
+++ b/std/node/_fs/promises/_fs_writeFile.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import { Encodings, WriteFileOptions } from "../_fs_common.ts";
+import type { Encodings, WriteFileOptions } from "../_fs_common.ts";
 
 import { writeFile as writeFileCallback } from "../_fs_writeFile.ts";
 
diff --git a/std/node/_fs/promises/_fs_writeFile_test.ts b/std/node/_fs/promises/_fs_writeFile_test.ts
index 8f6ef0842..6901fff22 100644
--- a/std/node/_fs/promises/_fs_writeFile_test.ts
+++ b/std/node/_fs/promises/_fs_writeFile_test.ts
@@ -6,7 +6,7 @@ import {
   assertThrowsAsync,
 } from "../../../testing/asserts.ts";
 import { writeFile } from "./_fs_writeFile.ts";
-import { TextEncodings } from "../_fs_common.ts";
+import type { TextEncodings } from "../_fs_common.ts";
 
 const decoder = new TextDecoder("utf-8");