diff --git a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
index 2f5fdc8d..f1b8b40e 100644
--- a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
+++ b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.cpp
@@ -24,7 +24,7 @@ void SyncControllerV2::service(HttpRequest &request, HttpResponse &response)
         qulonglong comicId;
         int currentPage;
         int currentRating;
-        unsigned long lastTimeOpened;
+        unsigned long long lastTimeOpened;
         QString hash;
         foreach(QString comicInfo, data)
         {