diff --git a/src/src/UI/Widget/ImageView/dicomimageview.cpp b/src/src/UI/Widget/ImageView/dicomimageview.cpp
index be9ea35..f5d0a56 100644
--- a/src/src/UI/Widget/ImageView/dicomimageview.cpp
+++ b/src/src/UI/Widget/ImageView/dicomimageview.cpp
@@ -89,7 +89,8 @@ void DicomImageView::initScrollbar() {
     //_MaxSlice = mImageViewer->GetSliceMax();
     mScrollBar->setValue(mImageViewer->GetSliceMin());
     mScrollBar->setMaximum(mImageViewer->GetSliceMax());
-    mScrollBar->setSingleStep(1);
+//    mScrollBar->setSingleStep(1);
+    mScrollBar->setPageStep(1);
     mScrollBar->setVisible(true);
     if (!mIsSlotInited) {
         connect(mScrollBar, &QScrollBar::valueChanged, this, &DicomImageView::scrollBarValueChanged);