diff --git a/.github/workflows/build_packages.yaml b/.github/workflows/build_packages.yaml
index 605a403d9..8a7f77498 100644
--- a/.github/workflows/build_packages.yaml
+++ b/.github/workflows/build_packages.yaml
@@ -77,7 +77,6 @@ jobs:
     - name: build
       env:
         PYTHON: python
-        DIAGNOSTIC: 1
       run: |
         $env:PATH = "${{ steps.install_erlang.outputs.erlpath }}\bin;$env:PATH"