diff --git a/app/src/main/java/com/aurora/store/view/custom/preference/AuroraListPreference.kt b/app/src/main/java/com/aurora/store/view/custom/preference/AuroraListPreference.kt
index 75eb16752..c8dce6af2 100644
--- a/app/src/main/java/com/aurora/store/view/custom/preference/AuroraListPreference.kt
+++ b/app/src/main/java/com/aurora/store/view/custom/preference/AuroraListPreference.kt
@@ -55,6 +55,6 @@ class AuroraListPreference : ListPreference {
     }
 
     override fun persistString(value: String?): Boolean {
-        return persistInt(Integer.valueOf(value))
+        return if (value != null) persistInt(Integer.valueOf(value)) else false
     }
-}
\ No newline at end of file
+}