diff --git a/src/applications/repository/response/PhabricatorVCSResponse.php b/src/applications/repository/response/PhabricatorVCSResponse.php
index aa0a3dff1d..544dc1f0ff 100644
--- a/src/applications/repository/response/PhabricatorVCSResponse.php
+++ b/src/applications/repository/response/PhabricatorVCSResponse.php
@@ -1,62 +1,74 @@
 <?php
 
 /**
  * In Git, there appears to be no way to send a message which will be output
- * by `git clone http://...`, although the response code is visible.
+ * by `git clone http://...`, although the response code is visible. We send
+ * the message in a header which is visible with "GIT_CURL_VERBOSE" if you
+ * know where to look.
  *
  * In Mercurial, the HTTP status response message is printed to the console, so
  * we send human-readable text there.
  *
  * In Subversion, we can get it to print a custom message if we send an
  * invalid/unknown response code, although the output is ugly and difficult
  * to read. For known codes like 404, it prints a canned message.
  *
  * All VCS binaries ignore the response body; we include it only for
  * completeness.
  */
 final class PhabricatorVCSResponse extends AphrontResponse {
 
   private $code;
   private $message;
 
   public function __construct($code, $message) {
     $this->code = $code;
 
     $message = head(phutil_split_lines($message));
     $this->message = $message;
   }
 
   public function getMessage() {
     return $this->message;
   }
 
   public function buildResponseString() {
     return $this->code.' '.$this->message;
   }
 
   public function getHeaders() {
     $headers = array();
 
     if ($this->getHTTPResponseCode() == 401) {
       $headers[] = array(
         'WWW-Authenticate',
         'Basic realm="Phabricator Repositories"',
       );
     }
 
+    $message = $this->getMessage();
+    if (strlen($message)) {
+      foreach (phutil_split_lines($message, false) as $line) {
+        $headers[] = array(
+          'X-Phabricator-Message',
+          $line,
+        );
+      }
+    }
+
     return $headers;
   }
 
   public function getCacheHeaders() {
     return array();
   }
 
   public function getHTTPResponseCode() {
     return $this->code;
   }
 
   public function getHTTPResponseMessage() {
     return $this->message;
   }
 
 }