diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -292,9 +292,12 @@
         '/differential/comment/inline/edit/'.$revision->getID().'/');
     }
 
+    $broken_diffs = $this->loadHistoryDiffStatus($diffs);
+
     $history = id(new DifferentialRevisionUpdateHistoryView())
       ->setUser($viewer)
       ->setDiffs($diffs)
+      ->setDiffUnitStatuses($broken_diffs)
       ->setSelectedVersusDiffID($diff_vs)
       ->setSelectedDiffID($target->getID())
       ->setSelectedWhitespace($whitespace)
@@ -776,6 +779,45 @@
     return $actions_dict;
   }
 
+  private function loadHistoryDiffStatus(array $diffs) {
+    assert_instances_of($diffs, 'DifferentialDiff');
+
+    $diff_phids = mpull($diffs, 'getPHID');
+    $bad_unit_status = array(
+      ArcanistUnitTestResult::RESULT_FAIL,
+      ArcanistUnitTestResult::RESULT_BROKEN,
+    );
+
+    $message = new HarbormasterBuildUnitMessage();
+    $target = new HarbormasterBuildTarget();
+    $build = new HarbormasterBuild();
+    $buildable = new HarbormasterBuildable();
+
+    $broken_diffs = queryfx_all(
+      $message->establishConnection('r'),
+      'SELECT distinct a.buildablePHID
+        FROM %T m
+          JOIN %T t ON m.buildTargetPHID = t.phid
+          JOIN %T b ON t.buildPHID = b.phid
+          JOIN %T a ON b.buildablePHID = a.phid
+        WHERE a.buildablePHID IN (%Ls)
+          AND m.result in (%Ls)',
+      $message->getTableName(),
+      $target->getTableName(),
+      $build->getTableName(),
+      $buildable->getTableName(),
+      $diff_phids,
+      $bad_unit_status);
+
+    $unit_status = array();
+    foreach ($broken_diffs as $broken) {
+      $phid = $broken['buildablePHID'];
+      $unit_status[$phid] = DifferentialUnitStatus::UNIT_FAIL;
+    }
+
+    return $unit_status;
+  }
+
   private function loadChangesetsAndVsMap(
     DifferentialDiff $target,
     DifferentialDiff $diff_vs = null,
diff --git a/src/applications/differential/customfield/DifferentialUnitField.php b/src/applications/differential/customfield/DifferentialUnitField.php
--- a/src/applications/differential/customfield/DifferentialUnitField.php
+++ b/src/applications/differential/customfield/DifferentialUnitField.php
@@ -61,7 +61,8 @@
     );
     $icon_color = idx($colors, $diff->getUnitStatus(), 'grey');
 
-    $message = DifferentialRevisionUpdateHistoryView::getDiffUnitMessage($diff);
+    $message = DifferentialRevisionUpdateHistoryView::getDiffUnitMessage(
+      $diff->getUnitStatus());
 
     $status = id(new PHUIStatusListView())
       ->addItem(
diff --git a/src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php b/src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
--- a/src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
+++ b/src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
@@ -7,6 +7,7 @@
   private $selectedDiffID;
   private $selectedWhitespace;
   private $commitsForLinks = array();
+  private $unitStatus = array();
 
   public function setDiffs(array $diffs) {
     assert_instances_of($diffs, 'DifferentialDiff');
@@ -35,6 +36,11 @@
     return $this;
   }
 
+  public function setDiffUnitStatuses(array $unit_status) {
+    $this->unitStatus = $unit_status;
+    return $this;
+  }
+
   public function render() {
     $this->requireResource('differential-core-view-css');
     $this->requireResource('differential-revision-history-css');
@@ -139,6 +145,11 @@
       }
 
       if ($diff) {
+        $unit_status = idx(
+          $this->unitStatus,
+          $diff->getPHID(),
+          $diff->getUnitStatus());
+
         $lint = self::renderDiffLintStar($row['obj']);
         $lint = phutil_tag(
           'div',
@@ -148,12 +159,12 @@
           ),
           $lint);
 
-        $unit = self::renderDiffUnitStar($row['obj']);
+        $unit = self::renderDiffUnitStar($unit_status);
         $unit = phutil_tag(
           'div',
           array(
             'class' => 'lintunit-star',
-            'title' => self::getDiffUnitMessage($diff),
+            'title' => self::getDiffUnitMessage($unit_status),
           ),
           $unit);
 
@@ -312,7 +323,7 @@
   const STAR_FAIL = 'fail';
   const STAR_SKIP = 'skip';
 
-  public static function renderDiffLintStar(DifferentialDiff $diff) {
+  private static function renderDiffLintStar(DifferentialDiff $diff) {
     static $map = array(
       DifferentialLintStatus::LINT_NONE => self::STAR_NONE,
       DifferentialLintStatus::LINT_OKAY => self::STAR_OKAY,
@@ -327,7 +338,7 @@
     return self::renderDiffStar($star);
   }
 
-  public static function renderDiffUnitStar(DifferentialDiff $diff) {
+  private static function renderDiffUnitStar($unit_status) {
     static $map = array(
       DifferentialUnitStatus::UNIT_NONE => self::STAR_NONE,
       DifferentialUnitStatus::UNIT_OKAY => self::STAR_OKAY,
@@ -336,8 +347,7 @@
       DifferentialUnitStatus::UNIT_SKIP => self::STAR_SKIP,
       DifferentialUnitStatus::UNIT_AUTO_SKIP => self::STAR_SKIP,
     );
-
-    $star = idx($map, $diff->getUnitStatus(), self::STAR_FAIL);
+    $star = idx($map, $unit_status, self::STAR_FAIL);
 
     return self::renderDiffStar($star);
   }
@@ -360,8 +370,8 @@
     return pht('Unknown');
   }
 
-  public static function getDiffUnitMessage(DifferentialDiff $diff) {
-    switch ($diff->getUnitStatus()) {
+  public static function getDiffUnitMessage($unit_status) {
+    switch ($unit_status) {
       case DifferentialUnitStatus::UNIT_NONE:
         return pht('No Unit Test Coverage');
       case DifferentialUnitStatus::UNIT_OKAY: