diff --git a/src/siadrive_dokan_api/siadokandrive.cpp b/src/siadrive_dokan_api/siadokandrive.cpp
index c1d8317..de11706 100644
--- a/src/siadrive_dokan_api/siadokandrive.cpp
+++ b/src/siadrive_dokan_api/siadokandrive.cpp
@@ -142,7 +142,7 @@ private:
         FILETIME fileTimes[3];
         if (GetFileTime(openFileInfo.FileHandle, &fileTimes[0], &fileTimes[1], &fileTimes[2]))
         {
-          _uploadManager->AddOrUpdate(openFileInfo.SiaPath, openFileInfo.CacheFilePath, *reinterpret_cast<std::uint16_t*>(&fileTimes[2]));
+          _uploadManager->AddOrUpdate(openFileInfo.SiaPath, openFileInfo.CacheFilePath, *reinterpret_cast<std::uint64_t*>(&fileTimes[2]));
         }
 			}
 			else