diff --git a/src/utils.ts b/src/utils.ts
index 3124f6efc5..d001095e4d 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -10,7 +10,7 @@ import { NodeUtils } from 'jslib/misc/nodeUtils';
 export class CliUtils {
     static writeLn(s: string, finalLine: boolean = false, error: boolean = false) {
         const stream = error ? process.stderr : process.stdout;
-        if (finalLine && process.platform === 'win32') {
+        if (finalLine && (process.platform === 'win32' || !stream.isTTY)) {
             stream.write(s);
         } else {
             stream.write(s + '\n');