diff --git a/.github/workflows/homebrew.yml b/.github/workflows/homebrew.yml
index e3a3ac50a0..09572efca5 100644
--- a/.github/workflows/homebrew.yml
+++ b/.github/workflows/homebrew.yml
@@ -43,7 +43,7 @@ jobs:
         echo "VERSION=$VERSION" >> $GITHUB_ENV
         wget https://github.com/kpeeters/cadabra2/archive/refs/tags/${VERSION}.tar.gz
         export SHA=`cat ${VERSION}.tar.gz | sha256sum -b | cut -d " " -f 1`
-        echo "SHA=${SHA}" >> GITHUB_ENV
+        echo "SHA=${SHA}" >> $GITHUB_ENV
       
     - name: Update Homebrew repo
       run: |