diff --git a/kubejs/server_scripts/ad_astra/tags.js b/kubejs/server_scripts/ad_astra/tags.js
index 1ebbd644c..8e32d42c7 100644
--- a/kubejs/server_scripts/ad_astra/tags.js
+++ b/kubejs/server_scripts/ad_astra/tags.js
@@ -506,8 +506,8 @@ const registerAdAstraPlacedFeatures = (event) => {
 
 	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:mars/underground/icicle')
-	event.add('tfg:mars_underground_decoration', 'tfc:mars/underground/icicle_extra')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/icicle')
+	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/icicle_extra')
 	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/loose_rocks')
 	event.add('tfg:mars_underground_decoration', 'tfg:mars/underground/ochrum_blob')