1 files changed, 1 insertions, 0 deletions
diff --git a/src/cargotype.h b/src/cargotype.h
index 74fa5a998..43e7cd6a7 100644
--- a/src/cargotype.h
+++ b/src/cargotype.h
@@ -130,6 +130,7 @@ private:
 };
 
 extern uint32 _cargo_mask;
+extern uint32 _standard_cargo_mask;
 
 void SetupCargoForClimate(LandscapeID l);
 CargoID GetCargoIDByLabel(CargoLabel cl);