diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d499c4d..9081d2f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -42,7 +42,7 @@ jobs:
 
   build-docker-image:
     name: Build Docker image
-    runs-on: ubuntu-latest-l-${{ matrix.arch }}
+    runs-on: "ubuntu-latest-l-${{matrix.arch}}"
     strategy:
       fail-fast: true
       matrix: