diff --git a/src/newgrf_airport.h b/src/newgrf_airport.h
index 261963b6a7..da5950f667 100644
--- a/src/newgrf_airport.h
+++ b/src/newgrf_airport.h
@@ -79,7 +79,6 @@ struct AirportSpec {
 	}
 
 	static AirportSpec dummy;
-	static AirportSpec oilrig;
 
 private:
 	static AirportSpec specs[NUM_AIRPORTS];