Index: src/workflow/ArcanistBaseWorkflow.php
===================================================================
--- src/workflow/ArcanistBaseWorkflow.php
+++ src/workflow/ArcanistBaseWorkflow.php
@@ -1527,7 +1527,7 @@
 
   /**
    * Get the PHID of the Phabricator repository this working copy corresponds
-   * to. Returns `null` no repository can be identified.
+   * to. Returns `null` if no repository can be identified.
    *
    * @return phid|null  Repository PHID, or null if no repository can be
    *                    identified.
@@ -1541,7 +1541,7 @@
 
   /**
    * Get the callsign of the Phabricator repository this working copy
-   * corresponds to. Returns `null` no repository can be identified.
+   * corresponds to. Returns `null` if no repository can be identified.
    *
    * @return string|null  Repository callsign, or null if no repository can be
    *                      identified.
@@ -1554,6 +1554,20 @@
 
 
   /**
+   * Get the URI of the Phabricator repository this working copy
+   * corresponds to. Returns `null` if no repository can be identified.
+   *
+   * @return string|null  Repository URI, or null if no repository can be
+   *                      identified.
+   *
+   * @task phabrep
+   */
+  protected function getRepositoryURI() {
+    return idx($this->getRepositoryInformation(), 'uri');
+  }
+
+
+  /**
    * Get human-readable reasoning explaining how `arc` evaluated which
    * Phabricator repository corresponds to this working copy. Used by
    * `arc which` to explain the process to users.
Index: src/workflow/ArcanistBrowseWorkflow.php
===================================================================
--- src/workflow/ArcanistBrowseWorkflow.php
+++ src/workflow/ArcanistBrowseWorkflow.php
@@ -108,18 +108,10 @@
   }
 
   private function getBaseURI() {
-    $conduit = $this->getConduit();
-    $project_id = $this->getWorkingCopy()->getProjectID();
-    $project_info = $this->getConduit()->callMethodSynchronous(
-      'arcanist.projectinfo',
-      array(
-        'name' => $project_id,
-      ));
-
-    $repo_info = $project_info['repository'];
+    $repo_uri = $this->getRepositoryURI();
     $branch = $this->getArgument('branch', 'master');
 
-    return $repo_info['uri'].'browse/'.$branch.'/';
+    return $repo_uri.'browse/'.$branch.'/';
   }
 
   private function getBrowserCommand() {