diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index e6e7368..8a38d98 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -38,7 +38,7 @@ jobs:
           # This is necessary to authorize the substitute server
           wget https://substitutes.nonguix.org/signing-key.pub
           mv signing-key.pub nonguix-signing-key.pub
-          guix archive --authorize < nonguix-signing-key.pub
+          sudo guix archive --authorize < nonguix-signing-key.pub
 
       - name: Build ISO
         run: |