diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index a8a71079..ace2b74e 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -16,8 +16,8 @@ on:
 env:
   # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
-  # github.repository as <account>/<repo>
-  IMAGE_NAME: ${{ github.repository }}
+  # Custom image name as <account>/diagrams-mcp
+  IMAGE_NAME: ${{ github.repository_owner }}/diagrams-mcp
 
 jobs:
   build: