diff --git a/app/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java b/app/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
index 6d39c9ee4..2a4908645 100644
--- a/app/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
+++ b/app/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
@@ -9,8 +9,10 @@ import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.os.Build;
 import android.text.TextUtils;
+import android.widget.Toast;
 
 import com.topjohnwu.magisk.MagiskManager;
+import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.container.Policy;
 import com.topjohnwu.magisk.container.SuLogEntry;
 import com.topjohnwu.magisk.utils.Shell;
@@ -171,6 +173,7 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
 
     @Override
     public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        MagiskManager.toast(R.string.su_db_corrupt, Toast.LENGTH_LONG);
         // Remove everything, we do not support downgrade
         db.execSQL("DROP TABLE IF EXISTS " + POLICY_TABLE);
         db.execSQL("DROP TABLE IF EXISTS " + LOG_TABLE);
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 6bf4e5554..a9ca0299f 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -206,5 +206,6 @@
     <string name="invalid_update_channel">不合法的更新頻道</string>
     <string name="settings_update_custom">自訂</string>
     <string name="settings_update_custom_msg">請輸入自訂網址</string>
+    <string name="su_db_corrupt">SU 資料庫已毀損，將會重新建置</string>
 
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f9b57dabc..1ed90c83c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -14,7 +14,6 @@
 
     <!--Status Fragment-->
     <string name="magisk_version_error">Magisk is not installed</string>
-
     <string name="checking_for_updates">Checking for updates…</string>
     <string name="magisk_update_available">Magisk v%1$s is available!</string>
     <string name="invalid_update_channel">Invalid Update Channel</string>
@@ -118,6 +117,7 @@
     <string name="uninstall_toast">Uninstalling Magisk Manager in 5 seconds, please manually reboot afterwards</string>
     <string name="proprietary_title">Download Proprietary Code</string>
     <string name="proprietary_notice">Magisk Manager is FOSS so doesn\'t contain Google\'s proprietary SafetyNet API code.\n\nDo you allow Magisk Manager to download an extension (contains GoogleApiClient) for SafetyNet checks?</string>
+    <string name="su_db_corrupt">SU database is corrupted, will recreate new db</string>
 
     <!--Settings Activity -->
     <string name="settings_general_category">General</string>