diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9255a58..53fb199 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
             fetch-depth: 0
 
       - name: Get branch name
-        run: echo "BranchName=${{GITHUB_REF_NAME}}" >> $env:GITHUB_ENV
+        run: echo "BranchName=${{env.GITHUB_REF_NAME}}" >> $env:GITHUB_ENV
 
       - name: Get commit hash
         run: echo "CommitHash=$(git rev-parse --short=7 HEAD)" >> $env:GITHUB_ENV