diff --git a/mods/cnc/rules/structures.yaml b/mods/cnc/rules/structures.yaml
index 848d7f2fe1..24abfde39c 100644
--- a/mods/cnc/rules/structures.yaml
+++ b/mods/cnc/rules/structures.yaml
@@ -68,6 +68,7 @@ FACT:
 	WithBuildingPlacedAnimation:
 	Power:
 		Amount: 0
+	ProvidesCustomPrerequisite@buildingname:
 
 FACT.GDI:
 	Inherits: FACT
@@ -185,6 +186,7 @@ PROC:
 	WithResources:
 	Power:
 		Amount: -50
+	ProvidesCustomPrerequisite@buildingname:
 
 SILO:
 	Inherits: ^BaseBuilding
@@ -260,6 +262,7 @@ PYLE:
 	ProductionBar:
 	Power:
 		Amount: -20
+	ProvidesCustomPrerequisite@buildingname:
 
 HAND:
 	Inherits: ^BaseBuilding
@@ -297,6 +300,7 @@ HAND:
 	ProductionBar:
 	Power:
 		Amount: -20
+	ProvidesCustomPrerequisite@buildingname:
 
 AFLD:
 	Inherits: ^BaseBuilding
@@ -337,6 +341,7 @@ AFLD:
 	ProductionBar:
 	Power:
 		Amount: -30
+	ProvidesCustomPrerequisite@buildingname:
 
 WEAP:
 	Inherits: ^BaseBuilding
@@ -378,6 +383,7 @@ WEAP:
 	ProductionBar:
 	Power:
 		Amount: -30
+	ProvidesCustomPrerequisite@buildingname:
 
 HPAD:
 	Inherits: ^BaseBuilding
@@ -423,6 +429,7 @@ HPAD:
 		ProductionType: Aircraft.Nod
 	Power:
 		Amount: -10
+	ProvidesCustomPrerequisite@buildingname:
 
 HQ:
 	Inherits: ^BaseBuilding
@@ -502,6 +509,7 @@ FIX:
 	WithRepairAnimation:
 	Power:
 		Amount: -30
+	ProvidesCustomPrerequisite@buildingname:
 
 EYE:
 	Inherits: ^BaseBuilding
@@ -549,6 +557,7 @@ EYE:
 	SupportPowerChargeBar:
 	Power:
 		Amount: -200
+	ProvidesCustomPrerequisite@buildingname:
 
 TMPL:
 	Inherits: ^BaseBuilding
@@ -595,6 +604,7 @@ TMPL:
 	SupportPowerChargeBar:
 	Power:
 		Amount: -150
+	ProvidesCustomPrerequisite@buildingname:
 
 GUN:
 	Inherits: ^BaseBuilding
diff --git a/mods/cnc/rules/tech.yaml b/mods/cnc/rules/tech.yaml
index 216051e583..6e6c74d250 100644
--- a/mods/cnc/rules/tech.yaml
+++ b/mods/cnc/rules/tech.yaml
@@ -36,6 +36,7 @@ HOSP:
 		HuskActor: HOSP.Husk
 	Bib:
 		HasMinibib: Yes
+	ProvidesCustomPrerequisite@buildingname:
 
 HOSP.Husk:
 	Inherits: ^CivBuildingHusk
@@ -70,6 +71,7 @@ BIO:
 		RallyPoint: -1,-1
 	LeavesHusk:
 		HuskActor: BIO.Husk
+	ProvidesCustomPrerequisite@buildingname:
 
 BIO.Husk:
 	Inherits: ^CivBuildingHusk
@@ -96,4 +98,5 @@ MISS:
 	Bib:
 		HasMinibib: Yes
 	WithMakeAnimation:
+	ProvidesCustomPrerequisite@buildingname: