diff --git a/include/constants/species.h b/include/constants/species.h
index d4dcc82115..7345513124 100644
--- a/include/constants/species.h
+++ b/include/constants/species.h
@@ -1629,7 +1629,7 @@
 #define SPECIES_URSHIFU_RAPID_STRIKE_STYLE_GIGANTAMAX   1522
 #define SPECIES_MIMIKYU_TOTEM_BUSTED                    1523
 
-#define SPECIES_EGG SPECIES_MIMIKYU_TOTEM_BUSTED + 1
+#define SPECIES_EGG (SPECIES_MIMIKYU_TOTEM_BUSTED + 1)
 
 #define NUM_SPECIES SPECIES_EGG