diff --git a/scripts/test_parallel_proactive_compile.sh b/scripts/test_parallel_proactive_compile.sh
index af153cb..ed360c6 100755
--- a/scripts/test_parallel_proactive_compile.sh
+++ b/scripts/test_parallel_proactive_compile.sh
@@ -47,6 +47,7 @@ PROACTIVE_COMPILE_ENABLED=1
 PROACTIVE_COMPILE_JOBS=2
 PROACTIVE_COMPILE_CHECK_INTERVAL=1
 COMPILE_FAILURE_RETRY_SECONDS=2
+SERVE_LAST_KNOWN_GOOD=0
 CFG
 mount --bind "$settings" /etc/uce/settings.cfg