diff --git a/.github/workflows/debuild.yml b/.github/workflows/debuild.yml
index a8710fc8..39d91223 100644
--- a/.github/workflows/debuild.yml
+++ b/.github/workflows/debuild.yml
@@ -37,7 +37,9 @@ jobs:
       - name: update repo information
         run: sudo apt-get update
       - name: install tzdata
-        run: DEBIAN_FRONTEND=noninteractive TZ="Europe/Berlin" apt-get -y install tzdata
+        run: |
+          sudo DEBIAN_FRONTEND=noninteractive TZ="Europe/Berlin" \
+              apt-get -y install tzdata
       - name: install devscripts
         run: sudo apt-get install equivs devscripts pipx hub
       - name: install dependencies