diff --git a/components/layout/flow.rs b/components/layout/flow.rs
index f206e9fc5a8..5fdff19d8eb 100644
--- a/components/layout/flow.rs
+++ b/components/layout/flow.rs
@@ -1401,7 +1401,7 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
         for kid in base(self).children.iter().rev() {
             if kid.is_inline_flow() {
                 if let Some(baseline_offset) = kid.as_inline().baseline_offset_of_last_line() {
-                    return Some(baseline_offset)
+                    return Some(base(kid).position.start.b + baseline_offset)
                 }
             }
             if kid.is_block_like() &&