diff --git a/.lune/build.luau b/.lune/build.luau
index c936283..a98a372 100644
--- a/.lune/build.luau
+++ b/.lune/build.luau
@@ -9,5 +9,6 @@ local function start_process(cmd: string, env: { string }?)
     process.spawn(command, arguments, { stdio = "forward", env = env })
 end
 
+start_process("rojo sourcemap dev.project.json -o sourcemap.json")
 start_process("darklua process --config .darklua.json lib/ dist/", { "ROBLOX_DEV=false" })
 start_process("rojo build build.project.json -o build.rbxm")