diff --git a/app/pdf-viewer/buffer.py b/app/pdf-viewer/buffer.py
index bf1737d..c3ee0bc 100644
--- a/app/pdf-viewer/buffer.py
+++ b/app/pdf-viewer/buffer.py
@@ -288,7 +288,8 @@ class PdfViewerWidget(QWidget):
 
     @build_context_wrap
     def wheelEvent(self, event):
-        self.update_scroll_offset(max(min(self.scroll_offset - self.scale * event.angleDelta().y() / 120 * self.mouse_scroll_offset, self.max_scroll_offset()), 0))
+        if not event.accept():
+            self.update_scroll_offset(max(min(self.scroll_offset - self.scale * event.angleDelta().y() / 120 * self.mouse_scroll_offset, self.max_scroll_offset()), 0))
 
     def get_start_page_index(self):
         return int(self.scroll_offset * 1.0 / self.scale / self.page_height)