diff --git a/.github/workflows/quali.yml b/.github/workflows/quali.yml
index 9e4e15e4b..b3e5bcd2c 100644
--- a/.github/workflows/quali.yml
+++ b/.github/workflows/quali.yml
@@ -169,7 +169,7 @@ jobs:
     - name: prepare namespace
       id: namespace
       run: |
-        NAMESPACE="testing-${{ github.run_id }}-$(echo ${{ matrix.ap_model }} | tr '[:upper:]' '[:lower:]')" | tr "_" "-"
+        NAMESPACE="testing-${{ github.run_id }}-$(echo ${{ matrix.ap_model }} | tr '[:upper:]' '[:lower:]' | tr '_' '-')"
         kubectl create ns $NAMESPACE
         kubectl config set-context --current --namespace=$NAMESPACE
         echo "::set-output name=name::${NAMESPACE}"