diff --git a/.github/workflows/docker_image.yml b/.github/workflows/docker_image.yml
index d65b50b..50e58bd 100644
--- a/.github/workflows/docker_image.yml
+++ b/.github/workflows/docker_image.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - 'master'
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
   docker:
     runs-on: ubuntu-latest