diff --git a/all_around_fillers.js b/all_around_fillers.js
index 90e26d59..2cb8a0da 100644
--- a/all_around_fillers.js
+++ b/all_around_fillers.js
@@ -69,3 +69,5 @@ elements.left_filler = {
         "plasma": { elem1:"armageddon", tempMin:500, charged:true },
     }
 }
+
+elements.filler.category = "fillers"