diff --git a/tabularray.sty b/tabularray.sty
index 134f96c..3993cc7 100644
--- a/tabularray.sty
+++ b/tabularray.sty
@@ -3766,7 +3766,7 @@
   {
     \hbox_set:Nn \l__tblr_measured_cell_box
       {
-        \begin{varwidth}{\paperwidth}
+        \begin{varwidth}[b]{\paperwidth}
           \TblrParboxRestore
           \cs:w __tblr_halign_command_ \g__tblr_cell_halign_tl : \cs_end:
           \__tblr_leave_vmode: