diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1318,7 +1318,6 @@
     'PhabricatorApplicationSearchController' => 'applications/search/controller/PhabricatorApplicationSearchController.php',
     'PhabricatorApplicationSearchEngine' => 'applications/search/engine/PhabricatorApplicationSearchEngine.php',
     'PhabricatorApplicationSearchResultsControllerInterface' => 'applications/search/interface/PhabricatorApplicationSearchResultsControllerInterface.php',
-    'PhabricatorApplicationSpaces' => 'applications/spaces/application/PhabricatorApplicationSpaces.php',
     'PhabricatorApplicationStatusView' => 'applications/meta/view/PhabricatorApplicationStatusView.php',
     'PhabricatorApplicationTransaction' => 'applications/transactions/storage/PhabricatorApplicationTransaction.php',
     'PhabricatorApplicationTransactionComment' => 'applications/transactions/storage/PhabricatorApplicationTransactionComment.php',
@@ -2562,6 +2561,7 @@
     'PhabricatorSlugTestCase' => 'infrastructure/util/__tests__/PhabricatorSlugTestCase.php',
     'PhabricatorSortTableUIExample' => 'applications/uiexample/examples/PhabricatorSortTableUIExample.php',
     'PhabricatorSourceCodeView' => 'view/layout/PhabricatorSourceCodeView.php',
+    'PhabricatorSpacesApplication' => 'applications/spaces/application/PhabricatorSpacesApplication.php',
     'PhabricatorSpacesCapabilityCreateSpaces' => 'applications/spaces/capability/PhabricatorSpacesCapabilityCreateSpaces.php',
     'PhabricatorSpacesCapabilityDefaultEdit' => 'applications/spaces/capability/PhabricatorSpacesCapabilityDefaultEdit.php',
     'PhabricatorSpacesCapabilityDefaultView' => 'applications/spaces/capability/PhabricatorSpacesCapabilityDefaultView.php',
@@ -4665,7 +4665,6 @@
     'PhabricatorApplicationPanelController' => 'PhabricatorApplicationsController',
     'PhabricatorApplicationQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'PhabricatorApplicationSearchController' => 'PhabricatorSearchBaseController',
-    'PhabricatorApplicationSpaces' => 'PhabricatorApplication',
     'PhabricatorApplicationStatusView' => 'AphrontView',
     'PhabricatorApplicationTransaction' => array(
       'PhabricatorLiskDAO',
@@ -6046,6 +6045,7 @@
     'PhabricatorSlugTestCase' => 'PhabricatorTestCase',
     'PhabricatorSortTableUIExample' => 'PhabricatorUIExample',
     'PhabricatorSourceCodeView' => 'AphrontView',
+    'PhabricatorSpacesApplication' => 'PhabricatorApplication',
     'PhabricatorSpacesCapabilityCreateSpaces' => 'PhabricatorPolicyCapability',
     'PhabricatorSpacesCapabilityDefaultEdit' => 'PhabricatorPolicyCapability',
     'PhabricatorSpacesCapabilityDefaultView' => 'PhabricatorPolicyCapability',
diff --git a/src/applications/spaces/application/PhabricatorApplicationSpaces.php b/src/applications/spaces/application/PhabricatorSpacesApplication.php
rename from src/applications/spaces/application/PhabricatorApplicationSpaces.php
rename to src/applications/spaces/application/PhabricatorSpacesApplication.php
--- a/src/applications/spaces/application/PhabricatorApplicationSpaces.php
+++ b/src/applications/spaces/application/PhabricatorSpacesApplication.php
@@ -1,6 +1,6 @@
 <?php
 
-final class PhabricatorApplicationSpaces extends PhabricatorApplication {
+final class PhabricatorSpacesApplication extends PhabricatorApplication {
 
   public function getBaseURI() {
     return '/spaces/';
diff --git a/src/applications/spaces/query/PhabricatorSpacesNamespaceQuery.php b/src/applications/spaces/query/PhabricatorSpacesNamespaceQuery.php
--- a/src/applications/spaces/query/PhabricatorSpacesNamespaceQuery.php
+++ b/src/applications/spaces/query/PhabricatorSpacesNamespaceQuery.php
@@ -23,7 +23,7 @@
   }
 
   public function getQueryApplicationClass() {
-    return 'PhabricatorApplicationSpaces';
+    return 'PhabricatorSpacesApplication';
   }
 
   protected function loadPage() {
diff --git a/src/applications/spaces/storage/PhabricatorSpacesNamespace.php b/src/applications/spaces/storage/PhabricatorSpacesNamespace.php
--- a/src/applications/spaces/storage/PhabricatorSpacesNamespace.php
+++ b/src/applications/spaces/storage/PhabricatorSpacesNamespace.php
@@ -15,7 +15,7 @@
   public static function initializeNewNamespace(PhabricatorUser $actor) {
     $app = id(new PhabricatorApplicationQuery())
       ->setViewer($actor)
-      ->withClasses(array('PhabricatorApplicationSpaces'))
+      ->withClasses(array('PhabricatorSpacesApplication'))
       ->executeOne();
 
     $view_policy = $app->getPolicy(