diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index fcfc2ff7536..30856ab416a 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -4484,6 +4484,7 @@ export class PlayerPokemon extends Pokemon {
         newPokemon.moveset = this.moveset.slice();
         newPokemon.moveset = this.copyMoveset();
         newPokemon.luck = this.luck;
+        newPokemon.gender = Gender.GENDERLESS;
         newPokemon.metLevel = this.metLevel;
         newPokemon.metBiome = this.metBiome;
         newPokemon.metSpecies = this.metSpecies;
diff --git a/src/test/evolution.test.ts b/src/test/evolution.test.ts
index 3046d103cbc..10748899d59 100644
--- a/src/test/evolution.test.ts
+++ b/src/test/evolution.test.ts
@@ -78,12 +78,15 @@ describe("Evolution", () => {
     const nincada = game.scene.getPlayerPokemon()!;
     nincada.abilityIndex = 2;
     nincada.metBiome = -1;
+    nincada.gender = 1;
 
     nincada.evolve(pokemonEvolutions[Species.NINCADA][0], nincada.getSpeciesForm());
     const ninjask = game.scene.getPlayerParty()[0];
     const shedinja = game.scene.getPlayerParty()[1];
     expect(ninjask.abilityIndex).toBe(2);
     expect(shedinja.abilityIndex).toBe(1);
+    expect(ninjask.gender).toBe(1);
+    expect(shedinja.gender).toBe(-1);
     // Regression test for https://github.com/pagefaultgames/pokerogue/issues/3842
     expect(shedinja.metBiome).toBe(-1);
   });