3 files changed, 4 insertions, 6 deletions
diff --git a/std/fs/copy_test.ts b/std/fs/copy_test.ts
index 5323ac9e4..1f3330226 100644
--- a/std/fs/copy_test.ts
+++ b/std/fs/copy_test.ts
@@ -15,7 +15,7 @@ import { ensureSymlink, ensureSymlinkSync } from "./ensure_symlink.ts";
 const testdataDir = path.resolve("fs", "testdata");
 
 // TODO(axetroy): Add test for Windows once symlink is implemented for Windows.
-const isWindows = Deno.build.os === "win";
+const isWindows = Deno.build.os === "windows";
 
 function testCopy(name: string, cb: (tempDir: string) => Promise<void>): void {
   Deno.test({
diff --git a/std/fs/ensure_symlink_test.ts b/std/fs/ensure_symlink_test.ts
index 2264a6c37..5fda1c86a 100644
--- a/std/fs/ensure_symlink_test.ts
+++ b/std/fs/ensure_symlink_test.ts
@@ -9,7 +9,7 @@ import * as path from "../path/mod.ts";
 import { ensureSymlink, ensureSymlinkSync } from "./ensure_symlink.ts";
 
 const testdataDir = path.resolve("fs", "testdata");
-const isWindows = Deno.build.os === "win";
+const isWindows = Deno.build.os === "windows";
 
 Deno.test("ensureSymlinkIfItNotExist", async function (): Promise<void> {
   const testDir = path.join(testdataDir, "link_file_1");
diff --git a/std/fs/walk_test.ts b/std/fs/walk_test.ts
index b054db4cf..ea9a33773 100644
--- a/std/fs/walk_test.ts
+++ b/std/fs/walk_test.ts
@@ -3,8 +3,6 @@ const { remove } = Deno;
 import { walk, walkSync, WalkOptions, WalkEntry } from "./walk.ts";
 import { assert, assertEquals, assertThrowsAsync } from "../testing/asserts.ts";
 
-const isWindows = Deno.build.os == "win";
-
 export function testWalk(
   setup: (arg0: string) => void | Promise<void>,
   t: () => void | Promise<void>,
@@ -254,13 +252,13 @@ testWalk(
     try {
       await symlink(d + "/b", d + "/a/bb");
     } catch (err) {
-      assert(isWindows);
+      assert(Deno.build.os == "windows");
       assertEquals(err.message, "Not implemented");
     }
   },
   async function symlink(): Promise<void> {
     // symlink is not yet implemented on Windows.
-    if (isWindows) {
+    if (Deno.build.os == "windows") {
       return;
     }