diff --git a/infra/nightly-resources/index.html b/infra/nightly-resources/index.html
index 320e854d..d66e260b 100644
--- a/infra/nightly-resources/index.html
+++ b/infra/nightly-resources/index.html
@@ -67,6 +67,7 @@ <h2>Nightlies</h2>
   </div>
   
   <h2>Overall Stats</h2>
+  <t>Warning: compile-time statistics are not very trustworthy in parallel mode.</t>
   <div id="overall-stats-table"></div>
 
   <h2>Detailed Table</h2>