diff --git a/Tests/LibWeb/Layout/expected/grid/relpos-grid-item.txt b/Tests/LibWeb/Layout/expected/grid/relpos-grid-item.txt
new file mode 100644
index 0000000000..fb9ab92bc0
--- /dev/null
+++ b/Tests/LibWeb/Layout/expected/grid/relpos-grid-item.txt
@@ -0,0 +1,13 @@
+Viewport <#document> at (0,0) content-size 800x600 children: not-inline
+ BlockContainer at (2,2) content-size 796x62.9375 [BFC] children: not-inline
+ Box
at (12,12) content-size 600x42.9375 [GFC] children: not-inline
+ BlockContainer at (14,14) content-size 200x17.46875 positioned [BFC] children: inline
+ line 0 width: 65.4375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
+ frag 0 from TextNode start: 0, length: 9, rect: [14,14 65.4375x17.46875]
+ "exekiller"
+ TextNode <#text>
+ BlockContainer at (24,25.46875) content-size 200x17.46875 positioned [BFC] children: inline
+ line 0 width: 53.171875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
+ frag 0 from TextNode start: 0, length: 6, rect: [24,25.46875 53.171875x17.46875]
+ "athena"
+ TextNode <#text>
diff --git a/Tests/LibWeb/Layout/input/grid/relpos-grid-item.html b/Tests/LibWeb/Layout/input/grid/relpos-grid-item.html
new file mode 100644
index 0000000000..cc6fc33b1e
--- /dev/null
+++ b/Tests/LibWeb/Layout/input/grid/relpos-grid-item.html
@@ -0,0 +1,19 @@
+exekiller
athena
\ No newline at end of file
diff --git a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp
index c8c2ba7696..98327196e5 100644
--- a/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/GridFormattingContext.cpp
@@ -1609,6 +1609,8 @@ void GridFormattingContext::run(Box const& box, LayoutMode, AvailableSpace const
y_start + child_box_state.border_top + child_box_state.padding_top + child_box_state.margin_top
};
+ compute_inset(child_box);
+
auto available_space_for_children = AvailableSpace(AvailableSize::make_definite(child_box_state.content_width()), AvailableSize::make_definite(child_box_state.content_height()));
if (auto independent_formatting_context = layout_inside(child_box, LayoutMode::Normal, available_space_for_children))
independent_formatting_context->parent_context_did_dimension_child_root_box();