diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 9058610..713a630 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -47,5 +47,5 @@ jobs:
           fetch-depth: 1
       - name: Build Ubuntu
         run: |
-          export ENV_QT_GCC=${{env.Qt5_Dir}}
+          export ENV_QT_GCC=$(pwd)/${{env.Qt5_Dir}}
           ci/linux/build_for_ubuntu.sh release