diff --git a/cocos/editor-support/cocostudio/ActionTimeline/CCActionTimelineCache.h b/cocos/editor-support/cocostudio/ActionTimeline/CCActionTimelineCache.h
index 7151498a85..08612740db 100644
--- a/cocos/editor-support/cocostudio/ActionTimeline/CCActionTimelineCache.h
+++ b/cocos/editor-support/cocostudio/ActionTimeline/CCActionTimelineCache.h
@@ -34,7 +34,7 @@ THE SOFTWARE.
 
 namespace flatbuffers
 {
-    struct FlatBufferBuilder;
+    class FlatBufferBuilder;
     
     struct NodeAction;
     struct TimeLine;
diff --git a/cocos/editor-support/cocostudio/ActionTimeline/CSLoader.h b/cocos/editor-support/cocostudio/ActionTimeline/CSLoader.h
index 5192f563eb..d80d792ef5 100644
--- a/cocos/editor-support/cocostudio/ActionTimeline/CSLoader.h
+++ b/cocos/editor-support/cocostudio/ActionTimeline/CSLoader.h
@@ -32,7 +32,7 @@
 
 namespace flatbuffers
 {
-    struct FlatBufferBuilder;
+    class FlatBufferBuilder;
     
     struct NodeTree;