diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1f02efc..accf2c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,7 +46,7 @@ jobs:
       if: success()
       run: |
         set +x
-        $NUGET_VERSION=git describe --tags --abbrev=1 | sed 's/-/./'
+        NUGET_VERSION=$(git describe --tags --abbrev=1 | sed 's/-/./')
         dotnet pack -c Release --no-build -v minimal -o ${{ env.NuGetDirectory }} -p:PackageVersion=$NUGET_VERSION
     - name: Publish NuGet package
       if: success() && (github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository)