diff --git a/AbilityKit/ability_base/want.h b/AbilityKit/ability_base/want.h
index 09355501285c417a6c3f94813b3f693f53bfd6fd..381cfc13d4d382046c8274156cb87abe3a76d0dd 100644
--- a/AbilityKit/ability_base/want.h
+++ b/AbilityKit/ability_base/want.h
@@ -59,7 +59,6 @@ typedef struct AbilityBase_Element {
     char* abilityName;
 } AbilityBase_Element;
 
-struct AbilityBase_Want;
 typedef struct AbilityBase_Want AbilityBase_Want;
 
 /**
diff --git a/AbilityKit/ability_runtime/start_options.h b/AbilityKit/ability_runtime/start_options.h
index 4b89ca90f0bace220a5bb58946c35b74acb801b5..cbcc8f51c6a30d15122a3473d8b3861f7ae25d70 100644
--- a/AbilityKit/ability_runtime/start_options.h
+++ b/AbilityKit/ability_runtime/start_options.h
@@ -47,7 +47,6 @@
 extern "C" {
 #endif
 
-struct AbilityRuntime_StartOptions;
 typedef struct AbilityRuntime_StartOptions AbilityRuntime_StartOptions;
 
 /**