diff --git a/src/battle_pyramid.c b/src/battle_pyramid.c
index eac03ca659..ce7a0526f2 100644
--- a/src/battle_pyramid.c
+++ b/src/battle_pyramid.c
@@ -1416,7 +1416,7 @@ void GenerateBattlePyramidWildMon(void)
         species = Random() % NUM_SPECIES;
 
         // check if base species
-        if (!GET_BASE_SPECIES_ID(species))
+        if (GET_BASE_SPECIES_ID(species) != species)
             continue;
 
         // check type