diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 828fc7d5..cc81b446 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -63,6 +63,11 @@ jobs:
       with:
         submodules: true
 
+    - name: Append LFS include config to GSDK .lfsconfig
+      run: |
+        git -C third_party/silabs/gecko_sdk checkout -- .lfsconfig
+        echo 'fetchinclude = "platform/emdrv/nvm3/lib/libnvm3_*_gcc.a,platform/radio/rail_lib/autogen/librail_release/librail_config_mgm*_gcc.a,platform/radio/rail_lib/autogen/librail_release/*efr32xg*_gcc_release.a,protocol/openthread/libs/libsl_openthread_efr32mg*x_gcc.a"' >> third_party/silabs/gecko_sdk/.lfsconfig
+
     - name: ccache
       uses: hendrikmuhs/ccache-action@v1.2
       with: