diff --git a/Tests/LibWeb/Layout/expected/flex/inline-flex-early-resolution-of-percentage-height.txt b/Tests/LibWeb/Layout/expected/flex/inline-flex-early-resolution-of-percentage-height.txt
new file mode 100644
index 00000000000000..351fd6640e4a22
--- /dev/null
+++ b/Tests/LibWeb/Layout/expected/flex/inline-flex-early-resolution-of-percentage-height.txt
@@ -0,0 +1,14 @@
+Viewport <#document> at (0,0) content-size 800x600 children: not-inline
+ BlockContainer at (0,0) content-size 800x216 [BFC] children: inline
+ frag 0 from Box start: 0, length: 0, rect: [8,8 200x200] baseline: 13.296875
+ Box
at (8,8) content-size 200x200 flex-container(row) [FFC] children: not-inline
+ BlockContainer at (8,8) content-size 200x200 flex-item [BFC] children: inline
+ frag 0 from TextNode start: 0, length: 5, rect: [8,8 36.84375x17] baseline: 13.296875
+ "hello"
+ TextNode <#text>
+
+ViewportPaintable (Viewport<#document>) [0,0 800x600]
+ PaintableWithLines (BlockContainer) [0,0 800x216]
+ PaintableBox (Box) [8,8 200x200]
+ PaintableWithLines (BlockContainer
) [8,8 200x200]
+ TextPaintable (TextNode<#text>)
diff --git a/Tests/LibWeb/Layout/input/flex/inline-flex-early-resolution-of-percentage-height.html b/Tests/LibWeb/Layout/input/flex/inline-flex-early-resolution-of-percentage-height.html
new file mode 100644
index 00000000000000..c91ef8f5fbe407
--- /dev/null
+++ b/Tests/LibWeb/Layout/input/flex/inline-flex-early-resolution-of-percentage-height.html
@@ -0,0 +1,14 @@
+
hello
diff --git a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
index a45e3229a95c71..d35073c888ecb5 100644
--- a/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
@@ -178,7 +178,7 @@ void InlineFormattingContext::dimension_box_on_line(Box const& box, LayoutMode l
// NOTE: Flex containers with `auto` height are treated as `max-content`, so we can compute their height early.
if (box_state.has_definite_height() || box.display().is_flex_inside())
- parent().compute_height(box, AvailableSpace(AvailableSize::make_definite(width), AvailableSize::make_definite(m_containing_block_used_values.content_height())));
+ parent().compute_height(box, AvailableSpace(AvailableSize::make_definite(width), AvailableSize::make_indefinite()));
auto independent_formatting_context = layout_inside(box, layout_mode, box_state.available_inner_space_or_constraints_from(*m_available_space));