diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index bcc5dff..ad359fb 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -22,6 +22,7 @@ jobs:
       - name: compile
         run: |
           cd cpython
+          mkdir $(pwd)/build
           sudo apt-get install build-essential gdb lcov pkg-config \
             libbz2-dev libffi-dev libgdbm-dev libgdbm-compat-dev liblzma-dev \
             libncurses5-dev libreadline6-dev libsqlite3-dev libssl-dev \