diff --git a/core/testMinimumPhpVersion.php b/core/testMinimumPhpVersion.php
index 118c7204a1aa493d8bbc2ea7e07b3da8b7d983e2..f67c343c9615541cfdf5b53e6228fca2321751e5 100644
--- a/core/testMinimumPhpVersion.php
+++ b/core/testMinimumPhpVersion.php
@@ -77,7 +77,8 @@ if (!function_exists('Piwik_ExitWithMessage')) {
     function Piwik_ShouldPrintBackTraceWithMessage()
     {
         $bool = (defined('PIWIK_PRINT_ERROR_BACKTRACE') && PIWIK_PRINT_ERROR_BACKTRACE)
-                || !empty($GLOBALS['PIWIK_TRACKER_DEBUG']);
+                || !empty($GLOBALS['PIWIK_TRACKER_DEBUG'])
+                || defined('PIWIK_TEST_MODE');
         return $bool;
     }