diff --git a/fdbserver/DataDistributionTracker.actor.cpp b/fdbserver/DataDistributionTracker.actor.cpp
index c1fa1cb51f..81ff9ade72 100644
--- a/fdbserver/DataDistributionTracker.actor.cpp
+++ b/fdbserver/DataDistributionTracker.actor.cpp
@@ -97,6 +97,7 @@ struct DataDistributionTracker {
 
 		DataDistributionTracker* operator()() {
 			if (trackerCancelled) {
+				TEST(true); // Trying to access DataDistributionTracker after tracker has been cancelled
 				throw dd_tracker_cancelled();
 			}
 			return &tracker;