diff --git a/esbuild.js b/esbuild.js
index 3e5446e..abeb10b 100644
--- a/esbuild.js
+++ b/esbuild.js
@@ -29,6 +29,13 @@ const copyWasmFiles = {
 	name: "copy-wasm-files",
 	setup(build) {
 		build.onEnd(() => {
+			// tiktoken
+			fs.copyFileSync(
+				path.join(__dirname, "node_modules", "tiktoken", "tiktoken_bg.wasm"),
+				path.join(__dirname, "dist", "tiktoken_bg.wasm")
+			)
+
+			// tree sitter
 			const sourceDir = path.join(__dirname, "node_modules", "web-tree-sitter")
 			const targetDir = path.join(__dirname, "dist")