diff --git a/tests/SigningTest.php b/tests/SigningTest.php
index 77399ab..8158ba3 100644
--- a/tests/SigningTest.php
+++ b/tests/SigningTest.php
@@ -11,6 +11,7 @@ use AWS\CRT\Auth\Signing;
 use AWS\CRT\Auth\Signable;
 use AWS\CRT\Auth\StaticCredentialsProvider;
 use AWS\CRT\HTTP\Request;
+use AWS\CRT\Log;
 
 require_once('common.inc');
 
@@ -65,6 +66,8 @@ final class SigningTest extends CrtTestCase {
     }
 
     public function testShouldSignHeader() {
+        Log::setLogLevel(Log::TRACE);
+        Log::toStdout();
         $credentials_provider = new StaticCredentialsProvider([
             'access_key_id' => self::SIGV4TEST_ACCESS_KEY_ID,
             'secret_access_key' => self::SIGV4TEST_SECRET_ACCESS_KEY,