diff --git a/src/com/android/launcher3/LauncherPrefs.kt b/src/com/android/launcher3/LauncherPrefs.kt
index befaa64..e5a1879 100644
--- a/src/com/android/launcher3/LauncherPrefs.kt
+++ b/src/com/android/launcher3/LauncherPrefs.kt
@@ -274,7 +274,8 @@
     abstract val sharedPrefKey: String
     abstract val isBackedUp: Boolean
     abstract val type: Class<*>
-    val sharedPrefFile: String = if (isBackedUp) SHARED_PREFERENCES_KEY else DEVICE_PREFERENCES_KEY
+    val sharedPrefFile: String
+        get() = if (isBackedUp) SHARED_PREFERENCES_KEY else DEVICE_PREFERENCES_KEY
 
     fun <T> to(value: T): Pair<Item, T> = Pair(this, value)
 }
diff --git a/tests/src/com/android/launcher3/LauncherPrefsTest.kt b/tests/src/com/android/launcher3/LauncherPrefsTest.kt
index d40a7bc..e8372b1 100644
--- a/tests/src/com/android/launcher3/LauncherPrefsTest.kt
+++ b/tests/src/com/android/launcher3/LauncherPrefsTest.kt
@@ -15,6 +15,9 @@
 private val TEST_INT_ITEM = LauncherPrefs.nonRestorableItem("3", -1)
 private val TEST_CONTEXTUAL_ITEM = ContextualItem("4", true, { true }, Boolean::class.java)
 
+private const val TEST_DEFAULT_VALUE = "default"
+private const val TEST_PREF_KEY = "test_pref_key"
+
 @SmallTest
 @RunWith(AndroidJUnit4::class)
 class LauncherPrefsTest {
@@ -151,4 +154,16 @@
     fun get_contextualItem_returnsCorrectDefault() {
         assertThat(launcherPrefs.get(TEST_CONTEXTUAL_ITEM)).isTrue()
     }
+
+    @Test
+    fun getItemSharedPrefFile_forNonRestorableItem_isCorrect() {
+        val nonRestorableItem = LauncherPrefs.nonRestorableItem(TEST_PREF_KEY, TEST_DEFAULT_VALUE)
+        assertThat(nonRestorableItem.sharedPrefFile).isEqualTo(LauncherFiles.DEVICE_PREFERENCES_KEY)
+    }
+
+    @Test
+    fun getItemSharedPrefFile_forBackedUpItem_isCorrect() {
+        val backedUpItem = LauncherPrefs.backedUpItem(TEST_PREF_KEY, TEST_DEFAULT_VALUE)
+        assertThat(backedUpItem.sharedPrefFile).isEqualTo(LauncherFiles.SHARED_PREFERENCES_KEY)
+    }
 }