diff --git a/src/cli/src/bench.rs b/src/cli/src/bench.rs
index c04512548033..ce933688d678 100644
--- a/src/cli/src/bench.rs
+++ b/src/cli/src/bench.rs
@@ -78,7 +78,9 @@ impl BenchTableMetadataCommand {
         #[cfg(feature = "pg_kvbackend")]
         let kv_backend = if let Some(postgres_addr) = &self.postgres_addr {
             info!("Using postgres as kv backend");
-            PgStore::with_url(postgres_addr, 128).await.unwrap()
+            PgStore::with_url(postgres_addr, 128, "greptime_metakv".to_string())
+                .await
+                .unwrap()
         } else {
             kv_backend
         };