diff --git a/weed/filer/mysql/mysql_store.go b/weed/filer/mysql/mysql_store.go
index 3513b5523..abcef6fe6 100644
--- a/weed/filer/mysql/mysql_store.go
+++ b/weed/filer/mysql/mysql_store.go
@@ -72,7 +72,7 @@ func (store *MysqlStore) initialize(dsn string, upsertQuery string, enableUpsert
 	}
 	gen := &SqlGenMysql{
 		CreateTableSqlTemplate: "",
-		DropTableSqlTemplate:   "DROP TABLE `%s`",
+		DropTableSqlTemplate:   "DROP TABLE IF EXISTS `%s`",
 		UpsertQueryTemplate:    upsertQuery,
 	}
 	store.SqlGenerator = gen
diff --git a/weed/filer/mysql2/mysql2_store.go b/weed/filer/mysql2/mysql2_store.go
index b4845ec07..0ff58f2ac 100644
--- a/weed/filer/mysql2/mysql2_store.go
+++ b/weed/filer/mysql2/mysql2_store.go
@@ -65,7 +65,7 @@ func (store *MysqlStore2) initialize(createTable, upsertQuery string, enableUpse
 	}
 	gen := &mysql.SqlGenMysql{
 		CreateTableSqlTemplate: createTable,
-		DropTableSqlTemplate:   "DROP TABLE `%s`",
+		DropTableSqlTemplate:   "DROP TABLE IF EXISTS `%s`",
 		UpsertQueryTemplate:    upsertQuery,
 	}
 	store.SqlGenerator = gen
diff --git a/weed/filer/postgres/postgres_store.go b/weed/filer/postgres/postgres_store.go
index a2388624b..c694f77c3 100644
--- a/weed/filer/postgres/postgres_store.go
+++ b/weed/filer/postgres/postgres_store.go
@@ -64,7 +64,7 @@ func (store *PostgresStore) initialize(upsertQuery string, enableUpsert bool, us
 	}
 	gen := &SqlGenPostgres{
 		CreateTableSqlTemplate: "",
-		DropTableSqlTemplate:   `drop table "%s"`,
+		DropTableSqlTemplate:   `drop table if exists "%s"`,
 		UpsertQueryTemplate:    upsertQuery,
 	}
 	store.SqlGenerator = gen
diff --git a/weed/filer/postgres2/postgres2_store.go b/weed/filer/postgres2/postgres2_store.go
index b818e550d..3a08118af 100644
--- a/weed/filer/postgres2/postgres2_store.go
+++ b/weed/filer/postgres2/postgres2_store.go
@@ -70,7 +70,7 @@ func (store *PostgresStore2) initialize(createTable, upsertQuery string, enableU
 	}
 	gen := &postgres.SqlGenPostgres{
 		CreateTableSqlTemplate: createTable,
-		DropTableSqlTemplate:   `drop table "%s"`,
+		DropTableSqlTemplate:   `drop table if exists "%s"`,
 		UpsertQueryTemplate:    upsertQuery,
 	}
 	store.SqlGenerator = gen
diff --git a/weed/filer/sqlite/sqlite_store.go b/weed/filer/sqlite/sqlite_store.go
index 5f04e6470..0e9fb7396 100644
--- a/weed/filer/sqlite/sqlite_store.go
+++ b/weed/filer/sqlite/sqlite_store.go
@@ -54,7 +54,7 @@ func (store *SqliteStore) initialize(dbFile, createTable, upsertQuery string) (e
 	store.SupportBucketTable = true
 	store.SqlGenerator = &mysql.SqlGenMysql{
 		CreateTableSqlTemplate: createTable,
-		DropTableSqlTemplate:   "drop table `%s`",
+		DropTableSqlTemplate:   "drop table if exists `%s`",
 		UpsertQueryTemplate:    upsertQuery,
 	}