diff --git a/df.building.xml b/df.building.xml
index 509df33d3..0d3b15056 100644
--- a/df.building.xml
+++ b/df.building.xml
@@ -2780,7 +2780,7 @@
 
         <stl-vector name='candidates' pointer-type='item'/>
         <stl-vector name='candidate_selected' type-name='bool'/>
-        <stl-vector name='level_map' type-name='int16_t' comment='map_block.walkable'/>
+        <stl-vector name='level_map' type-name='int32_t' comment='map_block.walkable'/>
         <stl-vector name='candidate_enabled' type-name='bool'/>
 
         <int16_t name="count_required"/>
@@ -2905,7 +2905,7 @@
             <static-array type-name='build_square_type' count='31'/>
         </static-array>
 
-        <int16_t name='cur_walk_tag'/>
+        <int32_t name='cur_walk_tag' comment='bay12: choice_level_map'/>
 
         <compound name='plate_info' type-name='pressure_plate_info'/>
 
@@ -2928,7 +2928,7 @@
         <compound name='selection_pos' type-name='coord' since='v0.50.01'/>
         <int32_t name='selection_area' since='v0.50.01'/>
         <int32_t name='total_sq'/>
-        <stl-vector name='total_sq_level_map' type-name='int16_t' since='v0.50.01'/>
+        <stl-vector name='total_sq_level_map' type-name='int32_t' since='v0.50.01'/>
 
         <bool name='use_last_material'/>
         <bool name='set_last_item_search'/>
diff --git a/df.item.xml b/df.item.xml
index 9d91d856b..1264029ff 100644
--- a/df.item.xml
+++ b/df.item.xml
@@ -520,7 +520,7 @@
         <int8_t name='stockpile_delay' comment='used to reset countdown; randomly varies'/>
 
         <int32_t name='base_uniform_score' comment='temporary_32'/>
-        <int16_t name='walkable_id' comment='temporary_16; from map_block.walkable'/>
+        <int32_t name='walkable_id' comment='temporary_32_2; from map_block.walkable'/>
         <uint16_t name='spec_heat'/>
         <uint16_t name='ignite_point'/>
         <uint16_t name='heatdam_point'/>