diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index efcb5924935..0fb0912e453 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -3540,14 +3540,16 @@ _reconnectToDB(ArchiveHandle *AH, const char *dbname)
 		 * Anything added between this line and the following \restrict must
 		 * be careful to avoid any possible meta-command injection vectors.
 		 */
-		ahprintf(AH, "\\unrestrict %s\n", ropt->restrict_key);
+		if (ropt->restrict_key)
+			ahprintf(AH, "\\unrestrict %s\n", ropt->restrict_key);
 
 		initPQExpBuffer(&connectbuf);
 		appendPsqlMetaConnect(&connectbuf, dbname);
 		ahprintf(AH, "%s", connectbuf.data);
 		termPQExpBuffer(&connectbuf);
 
-		ahprintf(AH, "\\restrict %s\n\n", ropt->restrict_key);
+		if (ropt->restrict_key)
+			ahprintf(AH, "\\restrict %s\n\n", ropt->restrict_key);
 	}
 
 	/*