diff --git a/kubejs/server_scripts/ad_astra/tags.js b/kubejs/server_scripts/ad_astra/tags.js
index c53d8e34f..98b3d3681 100644
--- a/kubejs/server_scripts/ad_astra/tags.js
+++ b/kubejs/server_scripts/ad_astra/tags.js
@@ -463,7 +463,23 @@ const registerAdAstraPlacedFeatures = (event) => {
 	event.add('tfg:moon_small_rock_features', 'tfg:moon/surface/pile_black_sand')
 
 	//#region Mars
-	event.add('tfg:mars_veins', 'tfg:mars/terrain/ochrum_blob')
+
+	// Underground decoration
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/cave_column')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/cave_spike')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/large_cave_spike')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/calcite')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/mega_calcite')
+	event.add('tfg:mars_underground_decoration', 'tfc:icicle')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/loose_rocks')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/ochrum_blob')
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/amethyst")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/barite")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/calcite")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/gypsum")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/opal")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/pyrite")
+	event.add('tfg:mars_underground_decoration', "tfg:earth/geode/quartzite")
 	
 	// Vegetation
 	event.add("tfg:mars_global_small_plants", "tfg:mars/surface/charnia")