diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index 2f0f886..8cc61cb 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -55,6 +55,7 @@ jobs:
           mkdir -p website/src/assets/wasm
           GOOS=js GOARCH=wasm go build -ldflags="-s -w" -o website/src/assets/wasm/tslua.wasm ./cmd/wasm/
           cp "$(go env GOROOT)/lib/wasm/wasm_exec.js" website/src/assets/wasm/
+          cp internal/lualib/middleclass/middleclass.lua website/src/assets/wasm/middleclass.lua
 
       - name: Install dependencies
         working-directory: website