diff --git a/.github/workflows/latex.yml b/.github/workflows/latex.yml
index 4dfa0dd..0fd8d42 100644
--- a/.github/workflows/latex.yml
+++ b/.github/workflows/latex.yml
@@ -18,6 +18,7 @@ jobs:
           root_file: main.tex
           working_directory: paper/src
           args: -pdf -interaction=nonstopmode -file-line-error -outdir=../build
+          pre_compile: bash ../concat_code.sh
       - name: Upload PDF
         uses: actions/upload-artifact@v4
         with: