diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index caa90d391a96..a64da242b824 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -2633,7 +2633,7 @@ sub do_run_test {
     }
 
     waitpid $child_pid, 0;
-    $child_exit = $?;
+    $child_exit = $? >> 8;
 
     my $end_time = time;
     $test_time = $end_time - $start_time;