diff --git a/1.6/Defs/DesignationCategoryDefs/WULA_DesignationCategoryDefs.xml b/1.6/Defs/DesignationCategoryDefs/WULA_DesignationCategoryDefs.xml
new file mode 100644
index 00000000..174a5ac3
--- /dev/null
+++ b/1.6/Defs/DesignationCategoryDefs/WULA_DesignationCategoryDefs.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Defs>
+
+  <DesignationCategoryDef>
+    <defName>WULA_Buildings</defName>
+    <label>乌拉科技</label>
+    <description>来自失落帝国的乌拉族科技建筑。</description>
+    <order>255</order>
+    <specialDesignatorClasses>
+      <li>Designator_Cancel</li>
+      <li>Designator_Deconstruct</li>
+    </specialDesignatorClasses>
+  </DesignationCategoryDef>
+
+</Defs>
\ No newline at end of file
diff --git a/1.6/Defs/ThingDefs_Buildings/WULA_Buildings_Maintenance.xml b/1.6/Defs/ThingDefs_Buildings/WULA_Buildings_Maintenance.xml
index 7085bba1..de7b47e2 100644
--- a/1.6/Defs/ThingDefs_Buildings/WULA_Buildings_Maintenance.xml
+++ b/1.6/Defs/ThingDefs_Buildings/WULA_Buildings_Maintenance.xml
@@ -44,7 +44,7 @@
       <destroySound>BuildingDestroyed_Metal_Big</destroySound>
       <uninstallWork>1800</uninstallWork>
     </building>
-    <designationCategory>Misc</designationCategory>
+    <designationCategory>WULA_Buildings</designationCategory>
     <minifiedDef>MinifiedThing</minifiedDef>
     <thingCategories>
       <li>BuildingsMisc</li>
diff --git a/1.6/Defs/ThingDefs_Buildings/WULA_FallenEmpire_Buildings_Ritual.xml b/1.6/Defs/ThingDefs_Buildings/WULA_FallenEmpire_Buildings_Ritual.xml
index bf2b969e..c5cc7839 100644
--- a/1.6/Defs/ThingDefs_Buildings/WULA_FallenEmpire_Buildings_Ritual.xml
+++ b/1.6/Defs/ThingDefs_Buildings/WULA_FallenEmpire_Buildings_Ritual.xml
@@ -31,7 +31,7 @@
     <inspectorTabs>
       <li>ITab_Entity</li>
     </inspectorTabs>
-    <designationCategory>Misc</designationCategory>
+    <designationCategory>WULA_Buildings</designationCategory>
     <altitudeLayer>FloorEmplacement</altitudeLayer>
     <selectable>true</selectable>
     <rotatable>false</rotatable>