diff --git a/jslib b/jslib
index 802d38f52e..a1823f9931 160000
--- a/jslib
+++ b/jslib
@@ -1 +1 @@
-Subproject commit 802d38f52e9794567179b9bd9ffc475ceb31323f
+Subproject commit a1823f9931173b982fee10ba4cb84c0ee5078fc3
diff --git a/src/program.ts b/src/program.ts
index c440b1ed66..fde3d5628b 100644
--- a/src/program.ts
+++ b/src/program.ts
@@ -68,8 +68,8 @@ export class Program extends BaseProgram {
         });
 
         program.on('command:*', () => {
-            writeLn(chalk.redBright('Invalid command: ' + program.args.join(' ')));
-            writeLn('See --help for a list of available commands.', true);
+            writeLn(chalk.redBright('Invalid command: ' + program.args.join(' ')), false, true);
+            writeLn('See --help for a list of available commands.', true, true);
             process.exitCode = 1;
         });
 
diff --git a/src/utils.ts b/src/utils.ts
index 44d2520668..3124f6efc5 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -8,11 +8,12 @@ import { FolderView } from 'jslib/models/view/folderView';
 import { NodeUtils } from 'jslib/misc/nodeUtils';
 
 export class CliUtils {
-    static writeLn(s: string, finalLine: boolean = false) {
+    static writeLn(s: string, finalLine: boolean = false, error: boolean = false) {
+        const stream = error ? process.stderr : process.stdout;
         if (finalLine && process.platform === 'win32') {
-            process.stdout.write(s);
+            stream.write(s);
         } else {
-            process.stdout.write(s + '\n');
+            stream.write(s + '\n');
         }
     }