diff --git a/src/applications/diffusion/controller/DiffusionExternalController.php b/src/applications/diffusion/controller/DiffusionExternalController.php
index 8ae8dcdba1..ea1bc24ae2 100644
--- a/src/applications/diffusion/controller/DiffusionExternalController.php
+++ b/src/applications/diffusion/controller/DiffusionExternalController.php
@@ -60,6 +60,7 @@ final class DiffusionExternalController extends DiffusionController {
           array(
             'action'    => 'browse',
             'callsign'  => $repository->getCallsign(),
+            'branch'    => $repository->getDefaultBranch(),
             'commit'    => $id,
           ));
         return id(new AphrontRedirectResponse())->setURI($redirect);
@@ -88,11 +89,12 @@ final class DiffusionExternalController extends DiffusionController {
           "Diffusion does not know about.</p>");
     } else if (count($commits) == 1) {
       $commit = head($commits);
+      $repo = $repositories[$commit->getRepositoryID()];
       $redirect = DiffusionRequest::generateDiffusionURI(
         array(
           'action'    => 'browse',
-          'callsign'  => $repositories[$commit->getRepositoryID()]
-                          ->getCallsign(),
+          'callsign'  => $repo->getCallsign(),
+          'branch'    => $repo->getDefaultBranch(),
           'commit'    => $commit->getCommitIdentifier(),
         ));
       return id(new AphrontRedirectResponse())->setURI($redirect);
@@ -105,6 +107,7 @@ final class DiffusionExternalController extends DiffusionController {
           array(
             'action'    => 'browse',
             'callsign'  => $repo->getCallsign(),
+            'branch'    => $repo->getDefaultBranch(),
             'commit'    => $commit->getCommitIdentifier(),
           ));
         $rows[] = array(
diff --git a/src/applications/owners/controller/PhabricatorOwnersDetailController.php b/src/applications/owners/controller/PhabricatorOwnersDetailController.php
index e0992e99ad..59b541dd50 100644
--- a/src/applications/owners/controller/PhabricatorOwnersDetailController.php
+++ b/src/applications/owners/controller/PhabricatorOwnersDetailController.php
@@ -101,8 +101,9 @@ final class PhabricatorOwnersDetailController
       $href = DiffusionRequest::generateDiffusionURI(
         array(
           'callsign' => $repo->getCallsign(),
-          'path'       => $path->getPath(),
-          'action' => 'browse'
+          'branch'   => $repo->getDefaultBranch(),
+          'path'     => $path->getPath(),
+          'action'   => 'browse'
         ));
       $repo_name = '<strong>'.phutil_escape_html($repo->getName()).
                    '</strong>';
diff --git a/src/applications/owners/controller/PhabricatorOwnersListController.php b/src/applications/owners/controller/PhabricatorOwnersListController.php
index 6ac24112c6..1a501bcff2 100644
--- a/src/applications/owners/controller/PhabricatorOwnersListController.php
+++ b/src/applications/owners/controller/PhabricatorOwnersListController.php
@@ -265,6 +265,7 @@ final class PhabricatorOwnersListController
           $href = DiffusionRequest::generateDiffusionURI(
             array(
               'callsign' => $repo->getCallsign(),
+              'branch'   => $repo->getDefaultBranch(),
               'path'     => $path->getPath(),
               'action'   => 'browse',
             ));