diff --git a/src/newgrf_station.cpp b/src/newgrf_station.cpp
--- a/src/newgrf_station.cpp
+++ b/src/newgrf_station.cpp
@@ -948,7 +948,7 @@ void TriggerStationAnimation(BaseStation
 				} else {
 					cargo = ss->grf_prop.grffile->cargo_map[cargo_type];
 				}
-				StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
+				StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | GB(Random(), 0, 16), (uint8)trigger | (cargo << 8));
 			}
 		}
 	}