diff --git a/src/include/pgstat.h b/src/include/pgstat.h
index fa5dca3b87..c4cdd9e48f 100644
--- a/src/include/pgstat.h
+++ b/src/include/pgstat.h
@@ -569,6 +569,7 @@ typedef union PgStat_Msg
 	PgStat_MsgFuncpurge msg_funcpurge;
 	PgStat_MsgRecoveryConflict msg_recoveryconflict;
 	PgStat_MsgDeadlock msg_deadlock;
+	PgStat_MsgChecksumFailure msg_checksumfailure;
 } PgStat_Msg;