diff --git a/src/backend/utils/adt/xid.c b/src/backend/utils/adt/xid.c
index da9da8a29b9..d05710b05c9 100644
--- a/src/backend/utils/adt/xid.c
+++ b/src/backend/utils/adt/xid.c
@@ -19,7 +19,6 @@
 #include "access/transam.h"
 #include "access/xact.h"
 #include "libpq/pqformat.h"
-#include "storage/proc.h"
 #include "utils/builtins.h"
 
 #define PG_GETARG_TRANSACTIONID(n)	DatumGetTransactionId(PG_GETARG_DATUM(n))