diff --git a/mods/ra/rules/ships.yaml b/mods/ra/rules/ships.yaml
index 04e252abd4..e6f29a8e24 100644
--- a/mods/ra/rules/ships.yaml
+++ b/mods/ra/rules/ships.yaml
@@ -52,9 +52,9 @@ SS:
 		InitialStance: HoldFire
 		InitialStanceAI: ReturnFire
 	AutoTargetPriority@DEFAULT:
-		ValidTargets: Water
+		ValidTargets: Water, Underwater
 	AutoTargetPriority@ATTACKANYTHING:
-		ValidTargets: Water
+		ValidTargets: Water, Underwater
 	DetectCloaked:
 		CloakTypes: Underwater
 		Range: 4c0