diff --git a/1.6/1.6/Defs/Thing_building/ARA_InteractiveEggSac.xml b/1.6/1.6/Defs/Thing_building/ARA_InteractiveEggSac.xml
index 713d68e..89c1330 100644
--- a/1.6/1.6/Defs/Thing_building/ARA_InteractiveEggSac.xml
+++ b/1.6/1.6/Defs/Thing_building/ARA_InteractiveEggSac.xml
@@ -97,7 +97,7 @@
     <defName>ARA_InsectSludge</defName>
     <label>阿拉克涅菌毯</label>
     <description>由阿拉克涅虫族所铺设的由真菌和分泌物混合得到的地面，清洁速度很快，但是对其他种族来说不太好看。</description>
-    <designationCategory>Floors<designationCategory/>
+    <designationCategory>Floors</designationCategory>
     <texturePath>Terrain/Surfaces/InsectSludge</texturePath>
     <pollutionShaderType MayRequire="Ludeon.RimWorld.Biotech">TerrainFadeRoughLinearBurn</pollutionShaderType>
     <pollutionOverlayTexturePath>Terrain/Surfaces/PollutionMud</pollutionOverlayTexturePath>