diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index 1994858..0ad9a5c 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -610,10 +610,8 @@ function simpletest_script_execute_batch($test_classes) {
       if (empty($status['running'])) {
         // The child exited, unregister it.
         proc_close($child['process']);
-        if ($status['exitcode'] == SIMPLETEST_SCRIPT_EXIT_FAILURE) {
-          if ($status['exitcode'] > $total_status) {
-            $total_status = $status['exitcode'];
-          }
+        if ($status['exitcode'] === SIMPLETEST_SCRIPT_EXIT_FAILURE) {
+          $total_status = max($status['exitcode'], $total_status);
         }
         elseif ($status['exitcode']) {
           $total_status = $status['exitcode'];