diff --git a/src/db/bin/convert.rs b/src/db/bin/convert.rs
index 9e45e61f..bbde2048 100644
--- a/src/db/bin/convert.rs
+++ b/src/db/bin/convert.rs
@@ -55,14 +55,7 @@ fn open_db(path: PathBuf, engine: String) -> Result<Db> {
 				Error(format!("Unable to create LMDB data directory: {}", e).into())
 			})?;
 
-			let map_size = if u32::MAX as usize == usize::MAX {
-				eprintln!(
-					"LMDB is not recommended on 32-bit systems, database size will be limited"
-				);
-				1usize << 30 // 1GB for 32-bit systems
-			} else {
-				1usize << 40 // 1TB for 64-bit systems
-			};
+			let map_size = lmdb_adapter::recommended_map_size();
 
 			let db = lmdb_adapter::heed::EnvOpenOptions::new()
 				.max_dbs(100)
diff --git a/src/db/lmdb_adapter.rs b/src/db/lmdb_adapter.rs
index 30865829..fdb254c6 100644
--- a/src/db/lmdb_adapter.rs
+++ b/src/db/lmdb_adapter.rs
@@ -335,3 +335,17 @@ where
 		}
 	}
 }
+
+// ----
+
+#[cfg(target_pointer_width = "64")]
+pub fn recommended_map_size() -> usize {
+	1usize << 40
+}
+
+#[cfg(target_pointer_width = "32")]
+pub fn recommended_map_size() -> usize {
+	use log::warn;
+	warn!("LMDB is not recommended on 32-bit systems, database size will be limited");
+	1usize << 30
+}
diff --git a/src/model/garage.rs b/src/model/garage.rs
index 06ef25d1..15769a17 100644
--- a/src/model/garage.rs
+++ b/src/model/garage.rs
@@ -102,13 +102,7 @@ impl Garage {
 				db_path.push("db.lmdb");
 				info!("Opening LMDB database at: {}", db_path.display());
 				std::fs::create_dir_all(&db_path).expect("Unable to create LMDB data directory");
-				let map_size =
-					if u32::MAX as usize == usize::MAX {
-						warn!("LMDB is not recommended on 32-bit systems, database size will be limited");
-						1usize << 30 // 1GB for 32-bit systems
-					} else {
-						1usize << 40 // 1TB for 64-bit systems
-					};
+				let map_size = garage_db::lmdb_adapter::recommended_map_size();
 
 				let db = db::lmdb_adapter::heed::EnvOpenOptions::new()
 					.max_dbs(100)