diff --git a/src/trainer_pools.c b/src/trainer_pools.c
index 6f0e57fdb2..faf93fcc9e 100644
--- a/src/trainer_pools.c
+++ b/src/trainer_pools.c
@@ -167,6 +167,10 @@ static u32 PickMonFromPool(const struct Trainer *trainer, u8 *poolIndexArray, u3
     //  If no mon has been found yet continue looking
     if (monIndex == POOL_SLOT_DISABLED)
         monIndex = pickFunctions.OtherFunction(trainer, poolIndexArray, partyIndex, monsCount, battleTypeFlags, rules);
+    //  If a mon still hasn't been found, return POOL_SLOT_DISABLED which makes party generation default to regular party generation
+    if (monIndex == POOL_SLOT_DISABLED)
+        return monIndex;
+
     u32 chosenTags = trainer->party[monIndex].tags;
     u16 chosenSpecies = trainer->party[monIndex].species;
     u16 chosenItem = trainer->party[monIndex].heldItem;