diff --git a/src/battle_util.c b/src/battle_util.c
index 45eecf1a1d..cdaf67b598 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -8726,6 +8726,10 @@ static u32 CalcMoveBasePowerAfterModifiers(u16 move, u8 battlerAtk, u8 battlerDe
         if (IS_MOVE_PHYSICAL(move))
             MulModifier(&modifier, UQ_4_12(1.5));
         break;
+    case ABILITY_ROCKY_PAYLOAD:
+        if (moveType == TYPE_ROCK)
+            MulModifier(&modifier, UQ_4_12(1.5));
+        break;
     }
 
     // field abilities