diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index ed6401d..216116a 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -9,7 +9,7 @@ on:
 
 env:
   # Use docker.io for Docker Hub if empty
-  REGISTRY: ""
+  REGISTRY: "docker.io"
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}