diff --git a/src/backend/access/nbtree/nbtree.c b/src/backend/access/nbtree/nbtree.c
index 013394c5b62..af24f671309 100644
--- a/src/backend/access/nbtree/nbtree.c
+++ b/src/backend/access/nbtree/nbtree.c
@@ -27,6 +27,7 @@
 #include "storage/ipc.h"
 #include "storage/lmgr.h"
 #include "storage/smgr.h"
+#include "tcop/tcopprot.h"		/* pgrminclude ignore */
 #include "utils/index_selfuncs.h"
 #include "utils/memutils.h"