diff --git a/df.entity.xml b/df.entity.xml
index 5fa4d7db0..3702f2e33 100644
--- a/df.entity.xml
+++ b/df.entity.xml
@@ -633,7 +633,7 @@
         <static-array name='art_facet_modifier' type-name='int32_t' count='4' index-enum='art_facet_type'/>
         <static-array name='art_image_element_modifier' type-name='int32_t' count='5' index-enum='art_image_element_type'/>
         <static-array name='item_improvement_modifier' type-name='int32_t'
-                      count='14' index-enum='improvement_type'/>
+                      count='15' index-enum='improvement_type'/>
 
         <static-array name='friendly_color' type-name='int16_t' count='3'/>