diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ecf640c..7f7f181 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,11 +17,12 @@ jobs:
         npm install
 
     - name: Build
+      env:
+        BRANCH_NAME: ${GITHUB_REF#refs/heads/}
       run: |
         cd app
         echo "testing GITHUB_REF itself: $GITHUB_REF"
         echo "testing GITHUB_REF with details availability: ${GITHUB_REF#refs/heads/}"
-        echo "BRANCH_NAME=${GITHUB_REF#refs/heads/}" >> "$GITHUB_ENV"
         echo "testing BRANCH_NAME variable: $BRANCH_NAME"
         npm run build:js && npm run build:css
         echo "executing ls out on the directory:"