diff --git a/test/parallel/test-fs-write-stream.js b/test/parallel/test-fs-write-stream.js
index 6d263f450b6a4b..18374f44ebcdad 100644
--- a/test/parallel/test-fs-write-stream.js
+++ b/test/parallel/test-fs-write-stream.js
@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 'use strict';
-require('../common');
+const common = require('../common');
 const assert = require('assert');
 const path = require('path');
 const fs = require('fs');
@@ -52,3 +52,17 @@ tmpdir.refresh();
   });
   stream.destroy();
 }
+
+// Throws if data is not of type Buffer.
+{
+  const stream = fs.createWriteStream(file);
+  stream.on('error', common.expectsError({
+    code: 'ERR_INVALID_ARG_TYPE',
+    type: TypeError
+  }));
+  stream.write(42, null, common.expectsError({
+    code: 'ERR_INVALID_ARG_TYPE',
+    type: TypeError
+  }));
+  stream.destroy();
+}