diff --git a/Libraries/LibWeb/Layout/BlockFormattingContext.cpp b/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
index 4be1d16ab2..48f64dbc94 100644
--- a/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
+++ b/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
@@ -235,7 +235,7 @@ void BlockFormattingContext::compute_width_for_floating_box(Box& box)
     if (margin_right.is_auto())
         margin_right = zero_value;
 
-    auto width = style.width();
+    auto width = style.width().resolved_or_auto(box, width_of_containing_block);
 
     // If 'width' is computed as 'auto', the used value is the "shrink-to-fit" width.
     if (width.is_auto()) {