diff --git a/server/src/manager/SqlDataManager.cpp b/server/src/manager/SqlDataManager.cpp
index 41c9029..1a8d31c 100644
--- a/server/src/manager/SqlDataManager.cpp
+++ b/server/src/manager/SqlDataManager.cpp
@@ -478,7 +478,7 @@ bool SqlDataManager::update_database(std::string &error) {
                 db_version(12);
 #endif
             case 11:
-                result = sql::command(this->sql(), "UPDATE TABLE `letters` SET `created` TO 0 WHERE 1;").execute();
+                result = sql::command(this->sql(), "UPDATE TABLE `letters` SET `created` = 0 WHERE 1;").execute();
                 if(!result) {
                     error = "Failed to reset offline messages timestamps";
                     return false;