diff --git a/components/layout/inline.rs b/components/layout/inline.rs
index 97d88bb06b2..8a323d744f4 100644
--- a/components/layout/inline.rs
+++ b/components/layout/inline.rs
@@ -1342,7 +1342,7 @@ impl Flow for InlineFlow {
self.base
.absolute_position_info
.relative_containing_block_mode,
- CoordinateSystem::Own);
+ CoordinateSystem::Parent);
let clip = fragment.clipping_region_for_children(&self.base.clip,
&stacking_relative_border_box);
match fragment.specific {
diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 0212f59dea9..ea43fdd0d20 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -133,6 +133,7 @@ flaky_cpu == append_style_a.html append_style_b.html
== inline_block_parent_width.html inline_block_parent_width_ref.html
== inline_block_parent_width_percentage.html inline_block_parent_width_ref.html
== inline_block_percentage_height_a.html inline_block_percentage_height_ref.html
+== inline_block_stacking_context_a.html inline_block_stacking_context_ref.html
== inline_block_with_margin_a.html inline_block_with_margin_ref.html
# inline_border_a.html inline_border_b.html
== inline_element_border_a.html inline_element_border_ref.html
diff --git a/tests/ref/inline_block_stacking_context_a.html b/tests/ref/inline_block_stacking_context_a.html
new file mode 100644
index 00000000000..7580f853735
--- /dev/null
+++ b/tests/ref/inline_block_stacking_context_a.html
@@ -0,0 +1,21 @@
+
+
+
+
+
+
+
+
+
diff --git a/tests/ref/inline_block_stacking_context_ref.html b/tests/ref/inline_block_stacking_context_ref.html
new file mode 100644
index 00000000000..6f8c959212d
--- /dev/null
+++ b/tests/ref/inline_block_stacking_context_ref.html
@@ -0,0 +1,21 @@
+
+
+
+
+
+
+
+
+