diff --git a/src/browse/workflow/ArcanistBrowseWorkflow.php b/src/browse/workflow/ArcanistBrowseWorkflow.php
--- a/src/browse/workflow/ArcanistBrowseWorkflow.php
+++ b/src/browse/workflow/ArcanistBrowseWorkflow.php
@@ -120,9 +120,7 @@
 
     $this->loadHardpoints(
       $refs,
-      array(
-        ArcanistBrowseRef::HARDPOINT_URIS,
-      ));
+      ArcanistBrowseRef::HARDPOINT_URIS);
 
     $zero_hits = array();
     $open_uris = array();
diff --git a/src/workflow/ArcanistDiffWorkflow.php b/src/workflow/ArcanistDiffWorkflow.php
--- a/src/workflow/ArcanistDiffWorkflow.php
+++ b/src/workflow/ArcanistDiffWorkflow.php
@@ -3062,12 +3062,8 @@
       ->setCommitRef($base_ref);
 
     $this->loadHardpoints(
-      array(
-        $state_ref,
-      ),
-      array(
-        ArcanistWorkingCopyStateRef::HARDPOINT_REVISIONREFS,
-      ));
+      $state_ref,
+      ArcanistWorkingCopyStateRef::HARDPOINT_REVISIONREFS);
 
     $revision_refs = $state_ref->getRevisionRefs();
     $viewer_phid = $this->getUserPHID();
diff --git a/src/workflow/ArcanistFeatureBaseWorkflow.php b/src/workflow/ArcanistFeatureBaseWorkflow.php
--- a/src/workflow/ArcanistFeatureBaseWorkflow.php
+++ b/src/workflow/ArcanistFeatureBaseWorkflow.php
@@ -79,10 +79,7 @@
 
     $this->loadHardpoints(
       ipull($states, 'state'),
-      array(
-        ArcanistWorkingCopyStateRef::HARDPOINT_REVISIONREFS,
-      ));
-
+      ArcanistWorkingCopyStateRef::HARDPOINT_REVISIONREFS);
 
     $this->printBranches($states);
 
diff --git a/src/workflow/ArcanistInspectWorkflow.php b/src/workflow/ArcanistInspectWorkflow.php
--- a/src/workflow/ArcanistInspectWorkflow.php
+++ b/src/workflow/ArcanistInspectWorkflow.php
@@ -98,9 +98,7 @@
         if ($hardpoints) {
           $hardpoint_keys = mpull($hardpoints, 'getHardpointKey');
 
-          $this->loadHardpoints(
-            $refs,
-            $hardpoint_keys);
+          $this->loadHardpoints($refs, $hardpoint_keys);
         }
       }
     }
diff --git a/src/workflow/ArcanistWorkflow.php b/src/workflow/ArcanistWorkflow.php
--- a/src/workflow/ArcanistWorkflow.php
+++ b/src/workflow/ArcanistWorkflow.php
@@ -2299,8 +2299,16 @@
   }
 
   final protected function loadHardpoints(
-    array $objects,
-    array $requests) {
+    $objects,
+    $requests) {
+
+    if (!is_array($objects)) {
+      $objects = array($objects);
+    }
+
+    if (!is_array($requests)) {
+      $requests = array($requests);
+    }
 
     $engine = $this->getHardpointEngine();