diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
index 4454cb69d3..970999853c 100644
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -459,9 +459,12 @@ final class DiffusionCommitController extends DiffusionController {
 
     $filetree = id(new DifferentialFileTreeEngine())
       ->setViewer($viewer)
-      ->setChangesets($changesets)
       ->setDisabled(!$show_changesets);
 
+    if ($show_changesets) {
+      $filetree->setChangesets($changesets);
+    }
+
     $description_box = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Description'))
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)