diff --git a/src/applications/project/xaction/column/PhabricatorProjectColumnNameTransaction.php b/src/applications/project/xaction/column/PhabricatorProjectColumnNameTransaction.php
index bff54277de..4a7342dc5f 100644
--- a/src/applications/project/xaction/column/PhabricatorProjectColumnNameTransaction.php
+++ b/src/applications/project/xaction/column/PhabricatorProjectColumnNameTransaction.php
@@ -1,66 +1,69 @@
 <?php
 
 final class PhabricatorProjectColumnNameTransaction
   extends PhabricatorProjectColumnTransactionType {
 
   const TRANSACTIONTYPE = 'project:col:name';
 
   public function generateOldValue($object) {
     return $object->getName();
   }
 
   public function applyInternalEffects($object, $value) {
     $object->setName($value);
   }
 
   public function getTitle() {
     $old = $this->getOldValue();
     $new = $this->getNewValue();
 
     if (!strlen($old)) {
       return pht(
         '%s named this column %s.',
         $this->renderAuthor(),
         $this->renderNewValue());
     } else if (strlen($new)) {
       return pht(
         '%s renamed this column from %s to %s.',
         $this->renderAuthor(),
         $this->renderOldValue(),
         $this->renderNewValue());
     } else {
       return pht(
         '%s removed the custom name of this column.',
         $this->renderAuthor());
     }
   }
 
   public function validateTransactions($object, array $xactions) {
     $errors = array();
 
     if ($this->isEmptyTextTransaction($object->getName(), $xactions)) {
       // The default "Backlog" column is allowed to be unnamed, which
       // means we use the default name.
-      if (!$object->isDefaultColumn()) {
+
+      // Proxy columns can't have a name, so don't raise an error here.
+
+      if (!$object->isDefaultColumn() && !$object->getProxy()) {
         $errors[] = $this->newRequiredError(
           pht('Columns must have a name.'));
       }
     }
 
     $max_length = $object->getColumnMaximumByteLength('name');
     foreach ($xactions as $xaction) {
       $new_value = $xaction->getNewValue();
       $new_length = strlen($new_value);
       if ($new_length > $max_length) {
         $errors[] = $this->newInvalidError(
           pht(
             'Column names must not be longer than %s characters.',
             new PhutilNumber($max_length)),
           $xaction);
       }
     }
 
     return $errors;
   }
 
 }