diff --git a/gleam.toml b/gleam.toml
index 3be44a4..20db8ca 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -24,6 +24,9 @@ gleam_javascript = ">= 1.0.1 and < 2.0.0"
 gleeunit = ">= 1.0.0 and < 2.0.0"
 lustre_dev_tools = ">= 2.3.6 and < 3.0.0"
 
+[javascript]
+source_maps = true
+
 [tools.lustre.html]
 scripts = [
   { src = "/dnd-inventory-tracker/dnd_inventory_tracker.js", type = "module" },