diff --git a/libraries/AP_Mission/AP_Mission.h b/libraries/AP_Mission/AP_Mission.h
index a6fe6f9c12..b4cc46a3a1 100644
--- a/libraries/AP_Mission/AP_Mission.h
+++ b/libraries/AP_Mission/AP_Mission.h
@@ -219,9 +219,6 @@ public:
 #if APM_BUILD_FUNCTOR
     FUNCTOR_TYPEDEF(mission_cmd_fn_t, bool, const Mission_Command&);
     FUNCTOR_TYPEDEF(mission_complete_fn_t, void);
-#elif APM_BUILD_DELEGATES
-    typedef DELEGATE_FUNCTION1(bool, const Mission_Command&) mission_cmd_fn_t;
-    typedef DELEGATE_FUNCTION0(void) mission_complete_fn_t;
 #else
     typedef bool (*mission_cmd_fn_t)(const Mission_Command& cmd);
     typedef void (*mission_complete_fn_t)(void);