diff --git a/Cargo.lock b/Cargo.lock
index 27554249250fe..868c205742df3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2898,6 +2898,20 @@ name = "const-str"
 version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aca749d3d3f5b87a0d6100509879f9cf486ab510803a4a4e1001da1ff61c2bd6"
+dependencies = [
+ "const-str-proc-macro",
+]
+
+[[package]]
+name = "const-str-proc-macro"
+version = "0.5.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d3007177ccd2435eef6de9e7471365c36bc35c0b31773e27b4fe797f39f84bf"
+dependencies = [
+ "proc-macro2 1.0.87",
+ "quote 1.0.35",
+ "syn 2.0.79",
+]
 
 [[package]]
 name = "constant_time_eq"
@@ -13936,6 +13950,7 @@ dependencies = [
  "bcs",
  "chrono",
  "clap",
+ "const-str",
  "diesel",
  "diesel-async",
  "diesel_migrations",
diff --git a/crates/sui-indexer-alt/Cargo.toml b/crates/sui-indexer-alt/Cargo.toml
index 3f0cf65685bf9..9073d5a9d6038 100644
--- a/crates/sui-indexer-alt/Cargo.toml
+++ b/crates/sui-indexer-alt/Cargo.toml
@@ -19,6 +19,7 @@ bb8 = "0.8.5"
 bcs.workspace = true
 chrono.workspace = true
 clap.workspace = true
+const-str = { workspace = true, features = ["proc"] }
 diesel = { workspace = true, features = ["chrono"] }
 diesel-async = { workspace = true, features = ["bb8", "postgres", "async-connection-wrapper"] }
 diesel_migrations.workspace = true
diff --git a/crates/sui-indexer-alt/src/db.rs b/crates/sui-indexer-alt/src/db.rs
index c4d60411656dc..30c5c8b7365eb 100644
--- a/crates/sui-indexer-alt/src/db.rs
+++ b/crates/sui-indexer-alt/src/db.rs
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use anyhow::anyhow;
+use const_str::format as const_format;
 use diesel::migration::MigrationVersion;
 use diesel_async::async_connection_wrapper::AsyncConnectionWrapper;
 use diesel_async::{
@@ -38,7 +39,7 @@ pub struct DbConfig {
     /// Time spent waiting for a connection from the pool to become available.
     #[arg(
         long,
-        default_value = stringify!(DEFAULT_CONNECTION_TIMEOUT_SECS),
+        default_value = const_format!("{DEFAULT_CONNECTION_TIMEOUT_SECS}"),
         value_name = "SECONDS",
         value_parser = |s: &str| s.parse().map(Duration::from_secs)
     )]