diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 57701ee..18c700a 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -44,7 +44,8 @@ jobs:
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} ${{ matrix.CXX }} ruby-${{ matrix.ruby }}
     env:
-      ACE_ROOT: ${{ github.workspace }}/ACE_TAO/ACE
+      DOC_ROOT: ${{ github.workspace }}/ACE_TAO
+      ACE_ROOT: ${{ github.workspace }}/${{ env.DOC_ROOT }}/ACE
       TAO_ROOT: ${{ github.workspace }}/ACE_TAO/TAO
       MPC_ROOT: ${{ github.workspace }}/ACE_TAO/MPC
       RIDL_ROOT: ${{ github.workspace }}/ridl