diff --git a/install/macos/build-app.py b/install/macos/build-app.py
index efc596307..a9617a91e 100755
--- a/install/macos/build-app.py
+++ b/install/macos/build-app.py
@@ -75,7 +75,9 @@ def sign_app_bundle(build_path, dist_path, app_path):
     icon_path = os.path.join(root, "install", "macos", "dangerzone.icns")
 
     print("○ Code signing app bundle")
-    identity_name_application = "Developer ID Application: Freedom of the Press Foundation (94ZZGGGJ3W)"
+    identity_name_application = (
+        "Developer ID Application: Freedom of the Press Foundation (94ZZGGGJ3W)"
+    )
     entitlements_plist_path = os.path.join(root, "install/macos/entitlements.plist")
 
     for path in itertools.chain(