diff --git a/src/game/engine/src/modules/climate/atmosphere_anomalies.gd b/src/game/engine/src/modules/climate/atmosphere_anomalies.gd
index 4ffde893..5e1f0948 100644
--- a/src/game/engine/src/modules/climate/atmosphere_anomalies.gd
+++ b/src/game/engine/src/modules/climate/atmosphere_anomalies.gd
@@ -164,7 +164,7 @@ func _drift_anomalies(game_map: RefCounted) -> void:
 
 	# Collect tiles with anomalies to drift
 	var drifters: Array = []
-	for pos: Variant in _sorted_anomaly_keys():
+	for pos: Vector2i in _sorted_anomaly_keys():
 		var tile: Variant = game_map.get_tile(pos)
 		if tile == null or tile.pressure_anomaly == 0.0:
 			_anomaly_age.erase(pos)