diff --git a/include/constants/form_change_types.h b/include/constants/form_change_types.h
index 8701a9497..b9d6c8942 100644
--- a/include/constants/form_change_types.h
+++ b/include/constants/form_change_types.h
@@ -81,5 +81,6 @@
 
 // Form change that activates automatically when entering battle with the specified item.
 // If the item is a Red Orb, it uses the Omega Symbol for the animation and icon. Otherwise, it defaults to the Alpha symbol.
+// The battle indicator icon is based on the species, with Primal Groudon's as Omega and otherwise being Alpha.
 // param1: item to hold.
 #define FORM_CHANGE_BATTLE_PRIMAL_REVERSION     13
diff --git a/src/battle_interface.c b/src/battle_interface.c
index c3d97f137..f7882c15b 100644
--- a/src/battle_interface.c
+++ b/src/battle_interface.c
@@ -1560,12 +1560,12 @@ u32 CreateMegaIndicatorSprite(u32 battlerId, u32 which)
     }
     else if (IsBattlerPrimalReverted(battlerId))
     {
-        if (gBattleMons[battlerId].item == ITEM_RED_ORB)
+        if (gBattleMons[battlerId].species == SPECIES_GROUDON_PRIMAL)
         {
             LoadSpritePalette(&sSpritePalette_OmegaIndicator);
             LoadSpriteSheet(&sSpriteSheet_OmegaIndicator);
         }
-        else // ITEM_BLUE_ORB
+        else // SPECIES_KYOGRE_PRIMAL
         {
             LoadSpritePalette(&sSpritePalette_AlphaIndicator);
             LoadSpriteSheet(&sSpriteSheet_AlphaIndicator);
@@ -1589,9 +1589,9 @@ u32 CreateMegaIndicatorSprite(u32 battlerId, u32 which)
     }
     else if (IsBattlerPrimalReverted(battlerId))
     {
-        if (gBattleMons[battlerId].item == ITEM_RED_ORB)
+        if (gBattleMons[battlerId].species == SPECIES_GROUDON_PRIMAL)
             spriteId = CreateSpriteAtEnd(&sSpriteTemplate_OmegaIndicator, x, y, 0);
-        else // ITEM_BLUE_ORB
+        else // SPECIES_KYOGRE_PRIMAL
             spriteId = CreateSpriteAtEnd(&sSpriteTemplate_AlphaIndicator, x, y, 0);
     }