diff --git a/justfile b/justfile
index e8bc03b..3bba7c2 100644
--- a/justfile
+++ b/justfile
@@ -13,7 +13,7 @@ build-wasm mode=default_mode:
 	just fetch-data
 	echo "Building to WASM target..."
 	cargo build --target wasm32-unknown-unknown {{ if mode == "release" {"--release"} else if mode == "benchmark" {"--profile benchmark"} else {""} }} --features wasm
-	wasm-bindgen ./target/wasm32-unknown-unknown/{{mode}}/csslsrs.wasm --out-dir ./packages/csslsrs/src/generated --target=experimental-nodejs-module
+	wasm-bindgen ./target/wasm32-unknown-unknown/{{mode}}/csslsrs.wasm --out-dir ./packages/csslsrs/src/generated --target=experimental-nodejs-module {{ if mode == "release" { "" } else { "--keep-debug" } }}
 	{{ if mode == "release" { "wasm-opt -O4 ./packages/csslsrs/src/generated/csslsrs_bg.wasm -o ./packages/csslsrs/src/generated/csslsrs_bg.wasm" } else { "" } }}
 	pnpm -C ./packages/csslsrs install
 	pnpm -C ./packages/csslsrs run build