diff --git a/app/lib/dal/sqliteDAL/BlockDAL.js b/app/lib/dal/sqliteDAL/BlockDAL.js
index 50cae80e976e75cf9bd784c08fa0c72b79c27e42..54499c0ef56ff24140072311088ac2926f1f674b 100644
--- a/app/lib/dal/sqliteDAL/BlockDAL.js
+++ b/app/lib/dal/sqliteDAL/BlockDAL.js
@@ -61,7 +61,6 @@ function BlockDAL(db) {
       ');' +
       'CREATE INDEX IF NOT EXISTS idx_block_hash ON block (hash);' +
       'CREATE INDEX IF NOT EXISTS idx_block_fork ON block (fork);' +
-      'ALTER TABLE block ADD COLUMN `wrong` BOOLEAN NOT NULL DEFAULT 0;' +
       'COMMIT;', []);
   });