diff --git a/tests/draw/test_table.py b/tests/draw/test_table.py
index 6015ee202..ad95d6da5 100644
--- a/tests/draw/test_table.py
+++ b/tests/draw/test_table.py
@@ -1473,7 +1473,6 @@ def test_running_elements_table_border_collapse_span(assert_pixels):
     ''')
 
 
-@pytest.mark.xfail
 @assert_no_logs
 def test_running_elements_table_border_collapse_margin(assert_pixels):
     assert_pixels(2 * '''
diff --git a/weasyprint/formatting_structure/build.py b/weasyprint/formatting_structure/build.py
index 2156d3d7b..0cc4507fd 100644
--- a/weasyprint/formatting_structure/build.py
+++ b/weasyprint/formatting_structure/build.py
@@ -970,6 +970,7 @@ def wrap_table(box, children):
         grid_height += len(group.children)
 
     table = box.copy_with_children(row_groups)
+    table.style = table.style.copy()
     table.column_groups = tuple(column_groups)
     if table.style['border_collapse'] == 'collapse':
         table.collapsed_border_grid = collapse_table_borders(