diff --git a/qt/aqt/browser/browser.py b/qt/aqt/browser/browser.py
index ac2cdeb5d..7737a2ff7 100644
--- a/qt/aqt/browser/browser.py
+++ b/qt/aqt/browser/browser.py
@@ -607,7 +607,9 @@ where id in %s"""
 
     def _on_preview_closed(self) -> None:
         if self.editor.web:
-            self.editor.web.eval("document.getElementById('previewButton').classList.remove('highlighted')")
+            self.editor.web.eval(
+                "document.getElementById('previewButton').classList.remove('highlighted')"
+            )
         self._previewer = None
 
     # Card deletion
diff --git a/qt/aqt/toolbar.py b/qt/aqt/toolbar.py
index c4e11dfc7..a4b06a104 100644
--- a/qt/aqt/toolbar.py
+++ b/qt/aqt/toolbar.py
@@ -150,7 +150,9 @@ class Toolbar:
 
     def set_sync_active(self, active: bool) -> None:
         method = "add" if active else "remove"
-        self.web.eval(f"document.getElementById('sync-spinner').classList.{method}('spin')")
+        self.web.eval(
+            f"document.getElementById('sync-spinner').classList.{method}('spin')"
+        )
 
     def set_sync_status(self, status: SyncStatus) -> None:
         self.web.eval(f"updateSyncColor({status.required})")