diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 616429733..e92a220bd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -35,5 +35,5 @@ jobs:
     - name: Build
       env:
         OMR_TARGET: ${{matrix.OMR_TARGET}}
-      run: make IGNORE_ERRORS=m -C /home/runner/work/openmptcprouter-feeds/openmptcprouter-feeds/openmptcprouter/${{ env.OMR_TARGET }}/source package/{compile,install,index} target/install -j6
+      run: make IGNORE_ERRORS=m -C /home/runner/work/openmptcprouter-feeds/openmptcprouter-feeds/openmptcprouter/${{ env.OMR_TARGET }}/source package/{compile,install,index} target/install -j1 V=s