diff --git a/BuildingClass.h b/BuildingClass.h
index 39eb2a7e..5280774f 100644
--- a/BuildingClass.h
+++ b/BuildingClass.h
@@ -49,6 +49,7 @@ class NOVTABLE BuildingClass : public TechnoClass
 	//ObjectClass
 	//MissionClass
 	//TechnoClass
+	virtual int GetCrewCount() const override JMP_THIS(0x451330);
 	virtual void Destroyed(ObjectClass* Killer) RX;
 	virtual bool ForceCreate(CoordStruct& coord, DWORD dwUnk = 0) R0;
 
diff --git a/TechnoClass.h b/TechnoClass.h
index 6a8fdcf3..24475125 100644
--- a/TechnoClass.h
+++ b/TechnoClass.h
@@ -219,7 +219,7 @@ class NOVTABLE TechnoClass : public RadioClass
 	virtual bool IsInSameZoneAs(AbstractClass* pTarget) R0;          // Is the target reachable?
 	virtual DWORD vt_entry_2C8(DWORD dwUnk, DWORD dwUnk2) R0;
 	virtual bool IsInSameZoneAsCoords(const CoordStruct& coord) R0;  // Are the coords reachable?
-	virtual int GetCrewCount() const R0;
+	virtual int GetCrewCount() const JMP_THIS(0x6F3950);
 	virtual int GetAntiAirValue() const R0;
 	virtual int GetAntiArmorValue() const R0;
 	virtual int GetAntiInfantryValue() const R0;