diff --git a/src/applications/herald/engine/HeraldEngine.php b/src/applications/herald/engine/HeraldEngine.php
--- a/src/applications/herald/engine/HeraldEngine.php
+++ b/src/applications/herald/engine/HeraldEngine.php
@@ -593,6 +593,10 @@
     $this->popProfilerRule($rule);
 
     if ($caught) {
+      phlog(pht('An exception occurred executing Herald rule %s: "%s" Review '.
+        'the Herald transcripts and correct or disable the problematic rule.',
+        $rule->getMonogram(),
+        $caught->getMessage()));
       throw $caught;
     }