diff --git a/app/src/main/java/de/kuschku/quasseldroid/ui/clientsettings/client/ClientSettingsFragment.kt b/app/src/main/java/de/kuschku/quasseldroid/ui/clientsettings/client/ClientSettingsFragment.kt
index 6e575a30c512bdb3b45fb714dd9f503f5825c5ae..78c7147c5346151c50ae6658b63cdba3f2466faa 100644
--- a/app/src/main/java/de/kuschku/quasseldroid/ui/clientsettings/client/ClientSettingsFragment.kt
+++ b/app/src/main/java/de/kuschku/quasseldroid/ui/clientsettings/client/ClientSettingsFragment.kt
@@ -94,7 +94,7 @@ class ClientSettingsFragment : DaggerPreferenceFragmentCompat(),
   }
 
   override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String) {
-    updateSummary(findPreference<ListPreference>(key))
+    updateSummary(findPreference(key) as? ListPreference)
     val appearanceSettings = Settings.appearance(context!!)
     if (this.appearanceSettings.theme != appearanceSettings.theme ||
         this.appearanceSettings.language != appearanceSettings.language) {