diff --git a/src/data/pokemon/species_info/gen_1_families.h b/src/data/pokemon/species_info/gen_1_families.h
index 2f5d4f6ad1..a2f63f443d 100644
--- a/src/data/pokemon/species_info/gen_1_families.h
+++ b/src/data/pokemon/species_info/gen_1_families.h
@@ -9228,9 +9228,9 @@ const struct SpeciesInfo gSpeciesInfoGen1[] =
     },
 
 #if P_UPDATED_ABILITIES >= GEN_7
-#define GENGAR_ABILITIES {ABILITY_CURSED_BODY, ABILITY_NONE}
+#define GENGAR_ABILITIES {ABILITY_CURSED_BODY, ABILITY_NONE, ABILITY_NONE}
 #else
-#define GENGAR_ABILITIES {ABILITY_LEVITATE, ABILITY_NONE}
+#define GENGAR_ABILITIES {ABILITY_LEVITATE, ABILITY_NONE, ABILITY_NONE}
 #endif
 
     [SPECIES_GENGAR] =