diff --git a/mods/cnc/rules/defaults.yaml b/mods/cnc/rules/defaults.yaml
index b78b77373e..78f822c801 100644
--- a/mods/cnc/rules/defaults.yaml
+++ b/mods/cnc/rules/defaults.yaml
@@ -232,6 +232,7 @@
 		RepairPercent: 40
 		RepairStep: 14
 	Building:
+		Adjacent: 5
 		RequiresBaseProvider: true
 		Dimensions: 1,1
 		Footprint: x