diff --git a/mods/cnc/rules/structures.yaml b/mods/cnc/rules/structures.yaml
index 22f24060e1..907b596b9d 100644
--- a/mods/cnc/rules/structures.yaml
+++ b/mods/cnc/rules/structures.yaml
@@ -531,6 +531,8 @@ GUN:
 	-GivesBuildableArea:
 	Health:
 		HP: 400
+	Armor:
+		Type: Heavy
 	RevealsShroud:
 		Range: 6c0
 	Bib: