diff --git a/tabularray.sty b/tabularray.sty
index 1492f57f..0e0bea1c 100644
--- a/tabularray.sty
+++ b/tabularray.sty
@@ -1104,6 +1104,9 @@
 \dim_zero_new:N \rulewidth
 \dim_set:Nn \rulewidth {0.4pt}
 
+\prop_new:N \g__tblr_defined_hdash_styles_prop
+\prop_new:N \g__tblr_defined_vdash_styles_prop
+
 \prop_gset_from_keyval:Nn \g__tblr_defined_hdash_styles_prop
   { solid = \hrule height \rulewidth }
 \prop_gset_from_keyval:Nn \g__tblr_defined_vdash_styles_prop
@@ -2971,6 +2974,13 @@
 %%> \section{Initialize Table Inner Specifications}
 %%% --------------------------------------------------------
 
+\prop_new:N \g__tblr_initial_table_prop
+\prop_new:N \g__tblr_initial_rows_prop
+\prop_new:N \g__tblr_initial_columns_prop
+\prop_new:N \g__tblr_initial_cells_prop
+\prop_new:N \g__tblr_initial_hlines_prop
+\prop_new:N \g__tblr_initial_vlines_prop
+
 \prop_gset_from_keyval:Nn \g__tblr_initial_table_prop
   {
     stretch = 1,