diff --git a/src/data/pokemon/species_info/gen_1_families.h b/src/data/pokemon/species_info/gen_1_families.h
index a12130d568..e8de1682c5 100644
--- a/src/data/pokemon/species_info/gen_1_families.h
+++ b/src/data/pokemon/species_info/gen_1_families.h
@@ -9259,6 +9259,7 @@ const struct SpeciesInfo gSpeciesInfoGen1[] =
         .abilities = GENGAR_ABILITIES,
         .bodyColor = BODY_COLOR_PURPLE,
         .speciesName = _("Gengar"),
+        .cryId = CRY_GENGAR,
         .natDexNum = NATIONAL_DEX_GENGAR,
         .categoryName = _("Shadow"),
         .height = 15,
@@ -9313,6 +9314,7 @@ const struct SpeciesInfo gSpeciesInfoGen1[] =
         .abilities = { ABILITY_SHADOW_TAG, ABILITY_SHADOW_TAG, ABILITY_SHADOW_TAG },
         .bodyColor = BODY_COLOR_PURPLE,
         .speciesName = _("Gengar"),
+        .cryId = CRY_GENGAR_MEGA,
         .natDexNum = NATIONAL_DEX_GENGAR,
         .categoryName = _("Shadow"),
         .height = 14,
@@ -9369,6 +9371,7 @@ const struct SpeciesInfo gSpeciesInfoGen1[] =
         .abilities = GENGAR_ABILITIES,
         .bodyColor = BODY_COLOR_PURPLE,
         .speciesName = _("Gengar"),
+        .cryId = CRY_GENGAR,
         .natDexNum = NATIONAL_DEX_GENGAR,
         .categoryName = _("Shadow"),
         .height = 200,