diff --git a/fdroidserver/update.py b/fdroidserver/update.py
index 3106b7aa..6369a8b8 100644
--- a/fdroidserver/update.py
+++ b/fdroidserver/update.py
@@ -1167,7 +1167,7 @@ def insert_localized_app_metadata(apps):
     https://f-droid.org/en/docs/All_About_Descriptions_Graphics_and_Screenshots/#in-the-apps-build-metadata-in-an-fdroiddata-collection
     """
     sourcedirs = glob.glob(os.path.join('build', '[A-Za-z]*', 'src', '[A-Za-z]*', 'fastlane', 'metadata', 'android', '[a-z][a-z]*'))
-    sourcedirs += glob.glob(os.path.join('build', '[A-Za-z]*', 'fastlane', 'metadata', 'android', '[a-z][a-z]*'))
+    sourcedirs += glob.glob(os.path.join('build', '[A-Za-z]*', '**', 'fastlane', 'metadata', 'android', '[a-z][a-z]*'), recursive=True)
     sourcedirs += glob.glob(os.path.join('build', '[A-Za-z]*', 'metadata', '[a-z][a-z]*'))
     sourcedirs += glob.glob(os.path.join('metadata', '[A-Za-z]*', '[a-z][a-z]*'))
 
@@ -1183,6 +1183,16 @@ def insert_localized_app_metadata(apps):
             locale = segments[-1]
             destdir = os.path.join('repo', packageName, locale)
 
+            builds = apps.get(packageName, {}).get('Builds', [])
+            found_in_subdir = (
+                builds
+                and len(segments) > 7
+                and segments[-4] == "fastlane"
+                and segments[-3] == "metadata"
+                and segments[-2] == "android"
+                and '/'.join(segments[2:-4]) == builds[-1].get('subdir')
+            )
+
             # flavors specified in build receipt
             build_flavors = []
             if builds and 'gradle' in builds[-1] and builds[-1]['gradle'] != ['yes']:
@@ -1190,8 +1200,17 @@ def insert_localized_app_metadata(apps):
                     builds[-1]['gradle']
                 )
 
-            if len(segments) >= 5 and segments[4] == "fastlane" and segments[3] not in build_flavors:
-                logging.debug("ignoring due to wrong flavor")
+            if (
+                not found_in_subdir
+                and len(segments) >= 5
+                and segments[4] == "fastlane"
+                and segments[3] not in build_flavors
+            ):
+                logging.debug(
+                    'Not scanning "{dir}" with unknown subdir or gradle flavor "{value}"'.format(
+                        dir=os.path.relpath(root), value=segments[3]
+                    )
+                )
                 continue
 
             for f in files:
diff --git a/tests/test_update.py b/tests/test_update.py
index de39d8fd..f17667e2 100755
--- a/tests/test_update.py
+++ b/tests/test_update.py
@@ -253,6 +253,75 @@ class UpdateTest(unittest.TestCase):
         fdroidserver.update.insert_localized_app_metadata(apps)
         self.assertEqual('42', apps[app.id]['localized']['en-US']['whatsNew'])
 
+    def test_fastlane_with_subdir(self):
+        """Test if fastlane in simple one-level subdir is found."""
+        os.chdir(self.testdir)
+        config = dict()
+        fdroidserver.common.fill_config_defaults(config)
+        fdroidserver.update.config = config
+
+        app = fdroidserver.metadata.App()
+        app.id = 'com.example.app'
+        build_dir = f'build/{app.id}'
+        flavor = 'flavor'
+        subdir = 'subproject'
+        apps = {app.id: app}
+        build = fdroidserver.metadata.Build()
+        build.versionCode = 42
+        build.gradle = [flavor]
+        build.subdir = subdir
+        app['Builds'] = [build]
+
+        first_value = 'first'
+        first_dir = Path(f'{build_dir}/src/{flavor}/fastlane/metadata/android/en-US')
+        first_dir.mkdir(parents=True)
+        (first_dir / 'title.txt').write_text(first_value)
+        fdroidserver.update.insert_localized_app_metadata(apps)
+        self.assertEqual(first_value, apps[app.id]['localized']['en-US']['name'])
+
+        second_value = 'second'
+        second_dir = Path(f'{build_dir}/{subdir}/fastlane/metadata/android/en-US')
+        second_dir.mkdir(parents=True)
+        (second_dir / 'title.txt').write_text(second_value)
+        fdroidserver.update.insert_localized_app_metadata(apps)
+        self.assertEqual(second_value, apps[app.id]['localized']['en-US']['name'])
+
+    def test_fastlane_with_multi_level_subdir(self):
+        """Test if fastlane in multi-level subdir is found."""
+        os.chdir(self.testdir)
+        config = dict()
+        fdroidserver.common.fill_config_defaults(config)
+        fdroidserver.update.config = config
+
+        app = fdroidserver.metadata.App()
+        app.id = 'org.videolan.vlc'
+        build_dir = f'build/{app.id}'
+        subdir = 'application/app'
+        apps = {app.id: app}
+        build = fdroidserver.metadata.Build()
+        build.versionCode = 42
+        build.gradle = ['yes']
+        build.subdir = subdir
+        app['Builds'] = [build]
+
+        first_value = 'first'
+        first_dir = Path(f'{build_dir}/{subdir}/fastlane/metadata/android/en-US')
+        first_dir.mkdir(parents=True)
+        (first_dir / 'title.txt').write_text(first_value)
+        fdroidserver.update.insert_localized_app_metadata(apps)
+        self.assertEqual(first_value, apps[app.id]['localized']['en-US']['name'])
+
+        # I'm not sure that it is correct behavior for this path to
+        # override the above path, but it is how it is working now. It
+        # seems to me it should be the other way around, but that is
+        # really hard to implement using the current algorithm.
+        second_value = 'second'
+        second_dir = Path(f'{build_dir}/fastlane/metadata/android/en-US')
+        second_dir.mkdir(parents=True)
+        (second_dir / 'title.txt').write_text(second_value)
+        fdroidserver.update.insert_localized_app_metadata(apps)
+        self.assertEqual(second_value, apps[app.id]['localized']['en-US']['name'])
+
     def test_name_title_scraping(self):
         """metadata file --> fdroiddata localized files --> fastlane/triple-t in app source --> APK"""
         shutil.copytree(basedir, self.testdir, dirs_exist_ok=True)