diff --git a/src/include/optimizer/appendinfo.h b/src/include/optimizer/appendinfo.h
index 2348c9c13a7..16705da7806 100644
--- a/src/include/optimizer/appendinfo.h
+++ b/src/include/optimizer/appendinfo.h
@@ -14,7 +14,6 @@
 #ifndef APPENDINFO_H
 #define APPENDINFO_H
 
-#include "nodes/plannodes.h"
 #include "nodes/relation.h"
 #include "utils/relcache.h"