diff --git a/src/help.c b/src/help.c
index 84b56678..549a1f28 100644
--- a/src/help.c
+++ b/src/help.c
@@ -259,9 +259,9 @@ help_backup(void)
 	printf(_("                                   number of days of recoverability; 0 disables; (default: 0)\n"));
 
 	printf(_("\n  Compression options:\n"));
-	printf(_("      --compress                   compress data files\n"));
+	printf(_("      --compress                   alias for --compress-algorithm='zlib' and --compress-level=1\n"));
 	printf(_("      --compress-algorithm=compress-algorithm\n"));
-	printf(_("                                   available options: 'zlib', 'pglz', 'none' (default: zlib)\n"));
+	printf(_("                                   available options: 'zlib', 'pglz', 'none' (default: none)\n"));
 	printf(_("      --compress-level=compress-level\n"));
 	printf(_("                                   level of compression [0-9] (default: 1)\n"));
 
@@ -538,8 +538,9 @@ help_set_config(void)
 	printf(_("                                   number of days of recoverability; 0 disables; (default: 0)\n"));
 
 	printf(_("\n  Compression options:\n"));
+	printf(_("      --compress                   alias for --compress-algorithm='zlib' and --compress-level=1\n"));
 	printf(_("      --compress-algorithm=compress-algorithm\n"));
-	printf(_("                                   available options: 'zlib','pglz','none'\n"));
+	printf(_("                                   available options: 'zlib','pglz','none' (default: 'none')\n"));
 	printf(_("      --compress-level=compress-level\n"));
 	printf(_("                                   level of compression [0-9] (default: 1)\n"));
 
@@ -611,9 +612,9 @@ help_archive_push(void)
 	printf(_("                                   relative path name of the WAL file on the server\n"));
 	printf(_("      --wal-file-name=wal-file-name\n"));
 	printf(_("                                   name of the WAL file to retrieve from the server\n"));
-	printf(_("      --compress                   compress WAL file during archiving\n"));
+	printf(_("      --compress                   alias for --compress-algorithm='zlib' and --compress-level=1\n"));
 	printf(_("      --compress-algorithm=compress-algorithm\n"));
-	printf(_("                                   available options: 'zlib','none'\n"));
+	printf(_("                                   available options: 'zlib', 'none' (default: 'none')\n"));
 	printf(_("      --compress-level=compress-level\n"));
 	printf(_("                                   level of compression [0-9] (default: 1)\n"));
 	printf(_("      --overwrite                  overwrite archived WAL file\n"));