diff --git a/src/applications/daemon/garbagecollector/PhabricatorDaemonLogGarbageCollector.php b/src/applications/daemon/garbagecollector/PhabricatorDaemonLogGarbageCollector.php
--- a/src/applications/daemon/garbagecollector/PhabricatorDaemonLogGarbageCollector.php
+++ b/src/applications/daemon/garbagecollector/PhabricatorDaemonLogGarbageCollector.php
@@ -19,10 +19,9 @@
 
     queryfx(
       $conn_w,
-      'DELETE FROM %T WHERE dateCreated < %d AND status != %s LIMIT 100',
+      'DELETE FROM %T WHERE dateModified < %d LIMIT 100',
       $table->getTableName(),
-      $this->getGarbageEpoch(),
-      PhabricatorDaemonLog::STATUS_RUNNING);
+      $this->getGarbageEpoch());
 
     return ($conn_w->getAffectedRows() == 100);
   }
diff --git a/src/applications/daemon/storage/PhabricatorDaemonLog.php b/src/applications/daemon/storage/PhabricatorDaemonLog.php
--- a/src/applications/daemon/storage/PhabricatorDaemonLog.php
+++ b/src/applications/daemon/storage/PhabricatorDaemonLog.php
@@ -37,13 +37,13 @@
         'status' => array(
           'columns' => array('status'),
         ),
-        'dateCreated' => array(
-          'columns' => array('dateCreated'),
-        ),
         'key_daemonID' => array(
           'columns' => array('daemonID'),
           'unique' => true,
         ),
+        'key_modified' => array(
+          'columns' => array('dateModified'),
+        ),
       ),
     ) + parent::getConfiguration();
   }