diff --git a/src/backend/replication/basebackup.c b/src/backend/replication/basebackup.c
index 81933ddc18..0e50ed169e 100644
--- a/src/backend/replication/basebackup.c
+++ b/src/backend/replication/basebackup.c
@@ -32,6 +32,7 @@
 #include "utils/builtins.h"
 #include "utils/elog.h"
 #include "utils/ps_status.h"
+#include "pgtar.h"
 
 typedef struct
 {
diff --git a/src/bin/pg_dump/pg_backup_tar.c b/src/bin/pg_dump/pg_backup_tar.c
index a60492bcb7..5e56070976 100644
--- a/src/bin/pg_dump/pg_backup_tar.c
+++ b/src/bin/pg_dump/pg_backup_tar.c
@@ -30,6 +30,7 @@
 #include "pg_backup_tar.h"
 #include "dumpmem.h"
 #include "dumputils.h"
+#include "pgtar.h"
 
 #include <sys/stat.h>
 #include <ctype.h>
diff --git a/src/include/pgtar.h b/src/include/pgtar.h
new file mode 100644
index 0000000000..ec8f681b1b
--- /dev/null
+++ b/src/include/pgtar.h
@@ -0,0 +1,15 @@
+/*-------------------------------------------------------------------------
+ *
+ * pgtar.h
+ *	  Functions for manipulating tarfile datastructures (src/port/tar.c)
+ *
+ *
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/pgtar.h
+ *
+ *-------------------------------------------------------------------------
+ */
+extern void tarCreateHeader(char *h, const char *filename, const char *linktarget, size_t size, mode_t mode, uid_t uid, gid_t gid, time_t mtime);
+extern int	tarChecksum(char *header);
diff --git a/src/include/port.h b/src/include/port.h
index 6085cd2bb7..b6092c6fda 100644
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -465,8 +465,4 @@ extern int	pg_check_dir(const char *dir);
 /* port/pgmkdirp.c */
 extern int	pg_mkdir_p(char *path, int omode);
 
-/* port/tar.c */
-void		tarCreateHeader(char *h, const char *filename, const char *linktarget, size_t size, mode_t mode, uid_t uid, gid_t gid, time_t mtime);
-int			tarChecksum(char *header);
-
 #endif   /* PG_PORT_H */
diff --git a/src/port/tar.c b/src/port/tar.c
index 54ef41afd7..33b488464f 100644
--- a/src/port/tar.c
+++ b/src/port/tar.c
@@ -1,4 +1,5 @@
 #include "c.h"
+#include "pgtar.h"
 #include <sys/stat.h>
 
 /*