diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index d60c496..652446d 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1391,6 +1391,11 @@
 }
 
 sub start_monitor_and_boot {
+    # Make sure the stable kernel has finished booting
+    start_monitor;
+    wait_for_monitor 5;
+    end_monitor;
+
     get_grub_index;
     get_version;
     install;