diff --git a/.github/workflows/nuitka.yml b/.github/workflows/nuitka.yml
index fb5dbde..cb6417b 100644
--- a/.github/workflows/nuitka.yml
+++ b/.github/workflows/nuitka.yml
@@ -38,7 +38,7 @@ jobs:
         if: runner.os == 'Windows'
         id: get_short_sha_powershell
         run: |
-          $short_sha=${GITHUB_SHA}.substring(1,7)
+          $short_sha = (echo ${GITHUB_SHA}).substring(1,7)
           Write-Output "short_sha=$short_sha" >> $GITHUB_OUTPUT