diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 255f39a..c4ee113 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -38,6 +38,7 @@
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
+    <uses-permission android:name="android.permission.USE_RESERVED_DISK" />
 
     <application android:label="@string/calendar_storage"
                  android:allowBackup="false"