diff --git a/src/frontend/src/catalog/system_catalog/pg_catalog/pg_indexes.rs b/src/frontend/src/catalog/system_catalog/pg_catalog/pg_indexes.rs
index a602e7180477..05741c7b89ef 100644
--- a/src/frontend/src/catalog/system_catalog/pg_catalog/pg_indexes.rs
+++ b/src/frontend/src/catalog/system_catalog/pg_catalog/pg_indexes.rs
@@ -29,6 +29,15 @@ use risingwave_frontend_macro::system_catalog;
         JOIN rw_catalog.rw_tables t ON i.primary_table_id = t.id
         JOIN rw_catalog.rw_schemas s ON i.schema_id = s.id
     UNION ALL
+    SELECT s.name AS schemaname,
+            t.name AS tablename,
+            i.name AS indexname,
+            NULL AS tablespace,
+            i.definition AS indexdef
+        FROM rw_catalog.rw_indexes i
+        JOIN rw_catalog.rw_materialized_views t ON i.primary_table_id = t.id
+        JOIN rw_catalog.rw_schemas s ON i.schema_id = s.id
+    UNION ALL
     SELECT s.name AS schemaname,
             t.name AS tablename,
             concat(t.name, '_pkey') AS indexname,