diff --git a/.github/workflows/test-build.yml b/.github/workflows/test-build.yml
index ab6eb3148..6cb60f1fd 100644
--- a/.github/workflows/test-build.yml
+++ b/.github/workflows/test-build.yml
@@ -71,7 +71,7 @@ jobs:
           mkdir build
           cd build
           make -f ../Makefile config-$CC
-          make -f ../Makefile -j$procs
+          make -f ../Makefile -j$procs ENABLE_LIBYOSYS=1
 
       - name: Log yosys-config output
         run: |
@@ -81,7 +81,7 @@ jobs:
         shell: bash
         run: |
           cd build
-          tar -cvf ../build.tar share/ yosys yosys-*
+          tar -cvf ../build.tar share/ yosys yosys-* libyosys.so
 
       - name: Store build artifact
         uses: actions/upload-artifact@v4