diff --git a/lib/driver.js b/lib/driver.js
index 836dca23c..67d68d72c 100644
--- a/lib/driver.js
+++ b/lib/driver.js
@@ -499,7 +499,7 @@ export class XCUITestDriver extends BaseDriver {
   /**
    * Allocates and configures port forwarding for the MJPEG server
    * @returns {Promise<void>}
-   * @throws {Error} If port forwarding fails
+   * @throws {Error} If port forwarding fails and mjpegServerPort capability value is provided explicitly
    */
   async allocateMjpegServerPort() {
     const mjpegServerPort = this.opts.mjpegServerPort || DEFAULT_MJPEG_SERVER_PORT;
@@ -519,6 +519,7 @@ export class XCUITestDriver extends BaseDriver {
             `Try to customize the value of 'mjpegServerPort' capability as a possible solution`,
         );
       } else {
+        this.log.debug(error.stack);
         throw new Error(
           `Cannot ensure MJPEG broadcast functionality by forwarding the local port ${mjpegServerPort} ` +
             `requested by the 'mjpegServerPort' capability to the device port ${mjpegServerPort}. ` +