diff --git a/include/constants/battle_config.h b/include/constants/battle_config.h
index baecae0186..d968dbd2f6 100644
--- a/include/constants/battle_config.h
+++ b/include/constants/battle_config.h
@@ -252,6 +252,7 @@
 // Other settings
 #define B_DOUBLE_WILD_CHANCE        0     // % chance of encountering two Pokémon in a Wild Encounter.
 #define B_MULTI_BATTLE_WHITEOUT     GEN_8 // In Gen4+, multi battles end when the Player and also their Partner don't have any more Pokémon to fight.
+#define B_EVOLUTION_AFTER_WHITEOUT  TRUE  // If set to TRUE, Pokemon that qualify for evolution after battle will evolve even if the player loses.
 #define B_WILD_NATURAL_ENEMIES      TRUE  // If set to TRUE, certain wild mon species will attack other species when partnered in double wild battles (eg. Zangoose vs Seviper)
 
 // Animation Settings
diff --git a/src/battle_main.c b/src/battle_main.c
index c376b227e6..b2b205cbe0 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -5174,7 +5174,11 @@ static void FreeResetData_ReturnToOvOrDoEvolutions(void)
                                   | BATTLE_TYPE_FRONTIER
                                   | BATTLE_TYPE_EREADER_TRAINER
                                   | BATTLE_TYPE_WALLY_TUTORIAL))
+#if !B_EVOLUTION_AFTER_WHITEOUT
             && (gBattleOutcome == B_OUTCOME_WON || gBattleOutcome == B_OUTCOME_CAUGHT))
+#else
+                                  )
+#endif
         {
             gBattleMainFunc = TrySpecialEvolution;
         }