diff --git a/src/applications/repository/phid/PhabricatorRepositoryRepositoryPHIDType.php b/src/applications/repository/phid/PhabricatorRepositoryRepositoryPHIDType.php
--- a/src/applications/repository/phid/PhabricatorRepositoryRepositoryPHIDType.php
+++ b/src/applications/repository/phid/PhabricatorRepositoryRepositoryPHIDType.php
@@ -48,7 +48,7 @@
   }
 
   public function canLoadNamedObject($name) {
-    return preg_match('/^r[A-Z]+|R[1-9]\d*\z/', $name);
+    return preg_match('/^(r[A-Z]+|R[1-9]\d*)\z/', $name);
   }
 
   public function loadNamedObjects(
diff --git a/src/applications/repository/query/PhabricatorRepositoryQuery.php b/src/applications/repository/query/PhabricatorRepositoryQuery.php
--- a/src/applications/repository/query/PhabricatorRepositoryQuery.php
+++ b/src/applications/repository/query/PhabricatorRepositoryQuery.php
@@ -65,7 +65,7 @@
         continue;
       }
 
-      if (preg_match('/^(r[A-Z]+)|(R[1-9]\d*)\z/', $identifier)) {
+      if (preg_match('/^(r[A-Z]+|R[1-9]\d*)\z/', $identifier)) {
         $monograms[$identifier] = $identifier;
         continue;
       }