diff --git a/df.dfhack.xml b/df.dfhack.xml
index 1982340217..20babb74a4 100644
--- a/df.dfhack.xml
+++ b/df.dfhack.xml
@@ -576,15 +576,13 @@
     </enum-type>
 
     <struct-type type-name='coord2d' custom-methods='true' comment='not a real structure'>
+        <!-- these are not actually used by codegen and are here only for reference -->
         <int16_t name='x' init-value='-30000'/>
         <int16_t name='y' init-value='-30000'/>
 
-        <custom-methods>
-            <cmethod name='isValid'/>
-            <cmethod name='clear'/>
-        </custom-methods>
-
+        <extra-include filename="CoordTemplate.h"/>
         <code-helper name='describe'>(fmt "(~A,~A)" $.x $.y)</code-helper>
+        <codegen-override template="DFHack::Coord2d" using="int16_t" no-constructor="true" no-identity="true"/>
     </struct-type>
 
     <struct-type type-name='coord2d_path' custom-methods='true' comment='not a real structure'>
@@ -605,17 +603,14 @@
     </struct-type>
 
     <struct-type type-name='coord' custom-methods='true' comment='not a real structure'>
+        <!-- these are not actually used by codegen and are here only for reference -->
         <int16_t name='x' init-value='-30000'/>
         <int16_t name='y' init-value='-30000'/>
         <int16_t name='z' init-value='-30000'/>
 
-        <extra-include type-name='coord2d'/>
-        <custom-methods>
-            <cmethod name='isValid'/>
-            <cmethod name='clear'/>
-        </custom-methods>
-
+        <extra-include filename="CoordTemplate.h"/>
         <code-helper name='describe'>(fmt "(~A,~A,~A)" $.x $.y $.z)</code-helper>
+        <codegen-override template="DFHack::Coord3d" using="int16_t" no-constructor="true" no-identity="true"/>
     </struct-type>
 
     <struct-type type-name='coord_path' custom-methods='true' comment='not a real structure'>
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 4d4880d4af..a984d33cf2 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -27,7 +27,7 @@ if(BUILD_XMLDUMP)
     add_executable(xml-dump-type-sizes dump-type-sizes.cpp)
     add_dependencies(xml-dump-type-sizes generate_headers)
     target_include_directories(xml-dump-type-sizes PRIVATE ${dfapi_SOURCE_DIR}/include)
-    target_link_libraries(xml-dump-type-sizes PRIVATE ${FMTLIB})
+    target_link_libraries(xml-dump-type-sizes PRIVATE lua ${FMTLIB})
     if(INSTALL_XMLDUMP)
         install(TARGETS xml-dump-type-sizes DESTINATION .)
     endif()