diff --git a/doc/src/sgml/ref/reindexdb.sgml b/doc/src/sgml/ref/reindexdb.sgml
index 80a7f84886..8cb8bf4fa3 100644
--- a/doc/src/sgml/ref/reindexdb.sgml
+++ b/doc/src/sgml/ref/reindexdb.sgml
@@ -208,7 +208,7 @@ PostgreSQL documentation
- Reindex database's system catalogs.
+ Reindex database's system catalogs only.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index a0b0250c49..64fbb40baf 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -798,7 +798,7 @@ help(const char *progname)
printf(_(" -i, --index=INDEX recreate specific index(es) only\n"));
printf(_(" -j, --jobs=NUM use this many concurrent connections to reindex\n"));
printf(_(" -q, --quiet don't write any messages\n"));
- printf(_(" -s, --system reindex system catalogs\n"));
+ printf(_(" -s, --system reindex system catalogs only\n"));
printf(_(" -S, --schema=SCHEMA reindex specific schema(s) only\n"));
printf(_(" -t, --table=TABLE reindex specific table(s) only\n"));
printf(_(" --tablespace=TABLESPACE tablespace where indexes are rebuilt\n"));