diff --git a/include/constants/species.h b/include/constants/species.h
index d59f10f718..9896bd471b 100644
--- a/include/constants/species.h
+++ b/include/constants/species.h
@@ -1657,8 +1657,20 @@
 #define SPECIES_OGERPON_HEARTHFLAME_MASK_TERA           GEN9_START + 134
 #define SPECIES_OGERPON_CORNERSTONE_MASK_TERA           GEN9_START + 135
 #define SPECIES_URSALUNA_BLOODMOON                      GEN9_START + 136
+// Indigo Disk
+#define SPECIES_1018                                    GEN9_START + 137
+#define SPECIES_1019                                    GEN9_START + 138
+#define SPECIES_1020                                    GEN9_START + 139
+#define SPECIES_1021                                    GEN9_START + 140
+#define SPECIES_1022                                    GEN9_START + 141
+#define SPECIES_1023                                    GEN9_START + 142
+#define SPECIES_1024                                    SPECIES_1024_FORM_1
+#define SPECIES_1024_FORM_1                             GEN9_START + 143
+#define SPECIES_1024_FORM_2                             GEN9_START + 144
+#define SPECIES_1024_FORM_3                             GEN9_START + 145
+#define SPECIES_1025                                    GEN9_START + 146
 
-#define GIGANTAMAX_START                                SPECIES_URSALUNA_BLOODMOON
+#define GIGANTAMAX_START                                SPECIES_1025
 
 // Gigantamax Forms
 #define SPECIES_VENUSAUR_GIGANTAMAX                     GIGANTAMAX_START + 1