diff --git a/core/src/behaviour_entity.h b/core/src/behaviour_entity.h
index afe237d..e9d5938 100644
--- a/core/src/behaviour_entity.h
+++ b/core/src/behaviour_entity.h
@@ -6,7 +6,6 @@
 #include "vmath.h"
 
 typedef struct {
-    void (*const spawn)(void* self, Vector at);
     void (*const update)(void* self, float dt);
     void (*const start)(void* self);
     void (*const draw)(void* self);
@@ -18,13 +17,12 @@ typedef struct {
     IDrop const* drop;
 } BehaviourEntity;
 
-#define impl_BehaviourEntity_for(T, start_f, update_f, spawn_f, draw_f)\
+#define impl_BehaviourEntity_for(T, start_f, update_f, draw_f)\
 static inline BehaviourEntity T##_as_BehaviourEntity(T* x) {\
     TC_FN_TYPECHECK(void, start_f, T*);\
     TC_FN_TYPECHECK(void, update_f, T*, float);\
     TC_FN_TYPECHECK(void, draw_f, T*);\
     static IEntityBehaviour const tc = {\
-        .spawn =   (void(*const)(void*, Vector)) spawn_f,\
         .update =  (void(*const)(void*, float))  update_f,\
         .start =   (void(*const)(void*))         start_f,\
         .draw =    (void(*const)(void*))         draw_f,\