diff --git a/.changeset/wise-trains-deny.md b/.changeset/wise-trains-deny.md
new file mode 100644
index 00000000..5824a740
--- /dev/null
+++ b/.changeset/wise-trains-deny.md
@@ -0,0 +1,6 @@
+---
+"ws-dev-build-settings": patch
+"@khanacademy/wonder-stuff-i18n": patch
+---
+
+Fix build script to output bin files using .js as their extension
diff --git a/build-settings/rollup.config.js b/build-settings/rollup.config.js
index 3b41f7d1..f9f6fcf9 100644
--- a/build-settings/rollup.config.js
+++ b/build-settings/rollup.config.js
@@ -225,7 +225,7 @@ const getPackageInfo = (commandLineArgs, pkgName) => {
                 name: pkgName,
                 format: "cjs",
                 platform: "node",
-                file: `dist/bin/${binFile}`,
+                file: `dist/bin/${binFile.replace(/\.ts$/, ".js")}`,
                 inputFile: `./src/bin/${binFile}`,
                 plugins: [preserveShebangs(), rollupExecutable()],
             });