diff --git a/crates/tools/pbxgen-stress/src/lib.rs b/crates/tools/pbxgen-stress/src/lib.rs
index 611689f0..ff4b2c66 100644
--- a/crates/tools/pbxgen-stress/src/lib.rs
+++ b/crates/tools/pbxgen-stress/src/lib.rs
@@ -25,6 +25,9 @@ use std::fs;
 use std::mem::size_of;
 use std::path::PathBuf;
 
+const STRESS_GLYPH_ASSET_ID: AssetId = 100;
+const STRESS_SCENE_ASSET_ID: AssetId = 1;
+
 fn asm(s: &str) -> Vec<u8> {
     assemble(s).expect("assemble")
 }
@@ -224,7 +227,7 @@ fn build_assets_pack() -> Result<Vec<u8>> {
     let scene = build_scene_bank();
     let scene_payload = encode_scene_payload(&scene);
     let scene_entry = AssetEntry {
-        asset_id: 1,
+        asset_id: STRESS_SCENE_ASSET_ID,
         asset_name: "stress_scene".into(),
         bank_type: BankType::SCENE,
         offset: glyph_payload.len() as u64,
@@ -235,8 +238,10 @@ fn build_assets_pack() -> Result<Vec<u8>> {
     };
 
     let asset_table = vec![glyph_entry, scene_entry];
-    let preload =
-        vec![PreloadEntry { asset_id: 0, slot: 0 }, PreloadEntry { asset_id: 1, slot: 0 }];
+    let preload = vec![
+        PreloadEntry { asset_id: STRESS_GLYPH_ASSET_ID, slot: 0 },
+        PreloadEntry { asset_id: STRESS_SCENE_ASSET_ID, slot: 0 },
+    ];
     let payload_len = glyph_payload.len() + scene_payload.len();
     let header = serde_json::to_vec(&AssetsPackHeader { asset_table, preload })?;
     let payload_offset = (ASSETS_PA_PRELUDE_SIZE + header.len()) as u64;
@@ -264,7 +269,7 @@ fn build_glyph_asset() -> (AssetEntry, Vec<u8>) {
     payload.extend_from_slice(&build_palette_bytes());
 
     let entry = AssetEntry {
-        asset_id: 0,
+        asset_id: STRESS_GLYPH_ASSET_ID,
         asset_name: "stress_square".into(),
         bank_type: BankType::GLYPH,
         offset: 0,
@@ -339,7 +344,7 @@ fn build_scene_bank() -> SceneBank {
 
         SceneLayer {
             active: true,
-            glyph_asset_id: 100,
+            glyph_asset_id: STRESS_GLYPH_ASSET_ID,
             tile_size: TileSize::Size8,
             parallax_factor: match layer_index {
                 0 => ParallaxFactor { x: 1.0, y: 1.0 },
@@ -431,8 +436,12 @@ mod tests {
 
         assert_eq!(header.asset_table.len(), 2);
         assert_eq!(header.preload.len(), 2);
+        assert_eq!(header.asset_table[0].asset_id, STRESS_GLYPH_ASSET_ID);
+        assert_eq!(header.asset_table[1].asset_id, STRESS_SCENE_ASSET_ID);
         assert_eq!(header.asset_table[0].bank_type, BankType::GLYPH);
         assert_eq!(header.asset_table[1].bank_type, BankType::SCENE);
+        assert_eq!(header.preload[0].asset_id, STRESS_GLYPH_ASSET_ID);
+        assert_eq!(header.preload[1].asset_id, STRESS_SCENE_ASSET_ID);
         assert_eq!(header.preload[0].slot, 0);
         assert_eq!(header.preload[1].slot, 0);
         assert_eq!(header.asset_table[0].offset, 0);
diff --git a/test-cartridges/stress-console/assets.pa b/test-cartridges/stress-console/assets.pa
index 77c82efc..ca43164c 100644
Binary files a/test-cartridges/stress-console/assets.pa and b/test-cartridges/stress-console/assets.pa differ