diff --git a/.github/workflows/build-deb-package.yml b/.github/workflows/build-deb-package.yml
index ec8c7c3..26f7fdd 100644
--- a/.github/workflows/build-deb-package.yml
+++ b/.github/workflows/build-deb-package.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        build: ${{ fromJson(needs.get-versions.outputs.versions }}
+        build: ${{ fromJson(needs.get-versions.outputs.versions) }}
 
     name: CKAN ref ${{ matrix.build.ckan-ref }} on Ubuntu ${{ matrix.build.ubuntu-version }}