diff --git a/sc2/src/sc2code/planets/lifeform.h b/sc2/src/sc2code/planets/lifeform.h
index ca9d49d22..f260a79a5 100644
--- a/sc2/src/sc2code/planets/lifeform.h
+++ b/sc2/src/sc2code/planets/lifeform.h
@@ -53,6 +53,7 @@
 #define DANGER_SHIFT (SPEED_SHIFT + 2)
 
 #define NUM_CREATURE_TYPES 23
+#define NUM_SPECIAL_CREATURE_TYPES 3
 #define MAX_LIFE_VARIATION 3
 
 #define CREATURE_AWARE (BYTE)(1 << 7)