diff --git a/src/pyj/read_book/flow_mode.pyj b/src/pyj/read_book/flow_mode.pyj
index bb1abd4e75..5c42d2a596 100644
--- a/src/pyj/read_book/flow_mode.pyj
+++ b/src/pyj/read_book/flow_mode.pyj
@@ -561,7 +561,7 @@ anchor_funcs = {
 
         # Start of object in the scrolling direction
         return scroll_viewport.viewport_to_document_block(
-            scroll_viewport.rect_block_start(br), elem.ownerDocument)
+            scroll_viewport.rect_block_start(br), elem.ownerDocument), scroll_viewport.viewport_to_document_inline(scroll_viewport.rect_inline_start(br))
     ,
     'visibility': def visibility(pos):
         x, y = pos