diff --git a/app/scanner2/HGImgThumb.cpp b/app/scanner2/HGImgThumb.cpp
index 3fa3e79f..dcd024bc 100644
--- a/app/scanner2/HGImgThumb.cpp
+++ b/app/scanner2/HGImgThumb.cpp
@@ -4752,7 +4752,7 @@ void HGAPI HGImgThumb::ThreadFunc(HGThread thread, HGPointer param)
         if (!fileName.isEmpty())
         {
             HGImage image = nullptr;
-            HGImgFmt_LoadImage(getStdString(fileName).c_str(), 0, nullptr, HGBASE_IMGTYPE_RGB, HGBASE_IMGORIGIN_TOP, &image);
+            HGImgFmt_LoadImage(getStdString(fileName).c_str(), 0, nullptr, 0, HGBASE_IMGORIGIN_TOP, &image);
             if (nullptr != image)
             {
                 HGBase_EnterLock(p->m_lockItemSize);