diff --git a/app/src/main/java/rikka/searchbyimage/database/DataBaseHelper.java b/app/src/main/java/rikka/searchbyimage/database/DataBaseHelper.java
index 0105c52..b326be6 100644
--- a/app/src/main/java/rikka/searchbyimage/database/DataBaseHelper.java
+++ b/app/src/main/java/rikka/searchbyimage/database/DataBaseHelper.java
@@ -10,7 +10,7 @@
  * Created by Rikka on 2016/1/24.
  */
 public class DatabaseHelper extends SQLiteOpenHelper{
-    public static final int DATABASE_VERSION = 1;
+    public static final int DATABASE_VERSION = 2;
     public static final String DATABASE_NAME = "search_engines.db";
 
     private static DatabaseHelper instance;
@@ -33,6 +33,8 @@ public void onCreate(SQLiteDatabase db) {
 
     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-
+        if (newVersion == 2) {
+            db.execSQL("ALTER TABLE " + CustomEngineTable.TABLE_NAME + " ADD " + CustomEngineTable.COLUMN_ENABLED + " integer NOT NULL DEFAULT(1)");
+        }
     }
-}
+}
\ No newline at end of file